Parameters

	steps steps: list of tuples List of (name of step, estimator) tuples that are to be chained in sequential order. To be compatible with the scikit-learn API, all steps must define `fit`. All non-last steps must also define `transform`. See :ref:`Combining Estimators <combining_estimators>` for more details.	[('tablevectorizer', ...), ('simpleimputer', ...), ...]
	transform_input transform_input: list of str, default=None The names of the :term:`metadata` parameters that should be transformed by the pipeline before passing it to the step consuming it. This enables transforming some input arguments to ``fit`` (other than ``X``) to be transformed by the steps of the pipeline up to the step which requires them. Requirement is defined via :ref:`metadata routing <metadata_routing>`. For instance, this can be used to pass a validation set through the pipeline. You can only set this if metadata routing is enabled, which you can enable using ``sklearn.set_config(enable_metadata_routing=True)``. .. versionadded:: 1.6	None
	memory memory: str or object with the joblib.Memory interface, default=None Used to cache the fitted transformers of the pipeline. The last step will never be cached, even if it is a transformer. By default, no caching is performed. If a string is given, it is the path to the caching directory. Enabling caching triggers a clone of the transformers before fitting. Therefore, the transformer instance given to the pipeline cannot be inspected directly. Use the attribute ``named_steps`` or ``steps`` to inspect estimators within the pipeline. Caching the transformers is advantageous when fitting is time consuming. See :ref:`sphx_glr_auto_examples_neighbors_plot_caching_nearest_neighbors.py` for an example on how to enable caching.	None
	verbose verbose: bool, default=False If True, the time elapsed while fitting each step will be printed as it is completed.	False

Fitted attributes

Name	Type	Value
classes_ classes_: ndarray of shape (n_classes,) The classes labels. Only exist if the last step of the pipeline is a classifier.	ndarray[int64](2,)	[0,1]
feature_names_in_ feature_names_in_: ndarray of shape (`n_features_in_`,) Names of features seen during :term:`fit`. Only defined if the underlying estimator exposes such an attribute when fit. .. versionadded:: 1.0	list	['me...us', 'me...re', 'me...er', 'me...ea', ...]
n_features_in_ n_features_in_: int Number of features seen during :term:`fit`. Only defined if the underlying first estimator in `steps` exposes such an attribute when fit. .. versionadded:: 0.24	int	30

tablevectorizer: TableVectorizer

Parameters

	low_cardinality	OneHotEncoder..._output=False)
	high_cardinality	StringEncoder()
	numeric	PassThrough()
	datetime	DatetimeEncod...ding='spline')
	cardinality_threshold	40
	specific_transformers	()
	drop_null_fraction	1.0
	drop_if_constant	False
	drop_if_unique	False
	datetime_format	None
	null_strings	None
	n_jobs	None

Fitted attributes

Name	Type	Value
all_outputs_	list	['me...us', 'me...re', 'me...er', 'me...ea', ...]
all_processing_steps_	dict	{'ar...or': [DropUninformative(), ToFloat(), PassThrough(), {'area error': ToFloat()}], 'co...or': [DropUninformative(), ToFloat(), PassThrough(), {'compactness...r': ToFloat()}], 'co...or': [DropUninformative(), ToFloat(), PassThrough(), {'concave poi...r': ToFloat()}], 'co...or': [DropUninformative(), ToFloat(), PassThrough(), {'concavity error': ToFloat()}], ...}
column_to_kind_	dict	{'ar...or': 'numeric', 'co...or': 'numeric', 'co...or': 'numeric', 'co...or': 'numeric', ...}
feature_names_in_	list	['me...us', 'me...re', 'me...er', 'me...ea', ...]
input_to_outputs_	dict	{'ar...or': ['ar...or'], 'co...or': ['co...or'], 'co...or': ['co...or'], 'co...or': ['co...or'], ...}
kind_to_columns_	dict	{'da...me': [], 'hi...ty': [], 'lo...ty': [], 'numeric': ['me...us', 'me...re', 'me...er', 'me...ea', ...], ...}
n_features_in_	int	30
output_to_input_	dict	{'ar...or': 'ar...or', 'co...or': 'co...or', 'co...or': 'co...or', 'co...or': 'co...or', ...}
transformers_	dict	{'ar...or': PassThrough(), 'co...or': PassThrough(), 'co...or': PassThrough(), 'co...or': PassThrough(), ...}

numeric

['mean radius', 'mean texture', 'mean perimeter', 'mean area', 'mean smoothness', 'mean compactness', 'mean concavity', 'mean concave points', 'mean symmetry', 'mean fractal dimension', 'radius error', 'texture error', 'perimeter error', 'area error', 'smoothness error', 'compactness error', 'concavity error', 'concave points error', 'symmetry error', 'fractal dimension error', 'worst radius', 'worst texture', 'worst perimeter', 'worst area', 'worst smoothness', 'worst compactness', 'worst concavity', 'worst concave points', 'worst symmetry', 'worst fractal dimension']

PassThrough

Parameters

datetime

DatetimeEncoder

Parameters

	periodic_encoding	'spline'
	resolution	'hour'
	add_weekday	False
	add_total_seconds	True
	add_day_of_year	False

low_cardinality

OneHotEncoder

Parameters

	drop drop: {'first', 'if_binary'} or an array-like of shape (n_features,), default=None Specifies a methodology to use to drop one of the categories per feature. This is useful in situations where perfectly collinear features cause problems, such as when feeding the resulting data into an unregularized linear regression model. However, dropping one category breaks the symmetry of the original representation and can therefore induce a bias in downstream models, for instance for penalized linear classification or regression models. - None : retain all features (the default). - 'first' : drop the first category in each feature. If only one category is present, the feature will be dropped entirely. - 'if_binary' : drop the first category in each feature with two categories. Features with 1 or more than 2 categories are left intact. - array : ``drop[i]`` is the category in feature ``X[:, i]`` that should be dropped. When `max_categories` or `min_frequency` is configured to group infrequent categories, the dropping behavior is handled after the grouping. .. versionadded:: 0.21 The parameter `drop` was added in 0.21. .. versionchanged:: 0.23 The option `drop='if_binary'` was added in 0.23. .. versionchanged:: 1.1 Support for dropping infrequent categories.	'if_binary'
	sparse_output sparse_output: bool, default=True When ``True``, it returns a SciPy sparse matrix/array in "Compressed Sparse Row" (CSR) format. .. versionadded:: 1.2 `sparse` was renamed to `sparse_output`	False
	dtype dtype: number type, default=np.float64 Desired dtype of output.	'float32'
	handle_unknown handle_unknown: {'error', 'ignore', 'infrequent_if_exist', 'warn'}, default='error' Specifies the way unknown categories are handled during :meth:`transform`. - 'error' : Raise an error if an unknown category is present during transform. - 'ignore' : When an unknown category is encountered during transform, the resulting one-hot encoded columns for this feature will be all zeros. In the inverse transform, an unknown category will be denoted as None. - 'infrequent_if_exist' : When an unknown category is encountered during transform, the resulting one-hot encoded columns for this feature will map to the infrequent category if it exists. The infrequent category will be mapped to the last position in the encoding. During inverse transform, an unknown category will be mapped to the category denoted `'infrequent'` if it exists. If the `'infrequent'` category does not exist, then :meth:`transform` and :meth:`inverse_transform` will handle an unknown category as with `handle_unknown='ignore'`. Infrequent categories exist based on `min_frequency` and `max_categories`. Read more in the :ref:`User Guide <encoder_infrequent_categories>`. - 'warn' : When an unknown category is encountered during transform a warning is issued, and the encoding then proceeds as described for `handle_unknown="infrequent_if_exist"`. .. versionchanged:: 1.1 `'infrequent_if_exist'` was added to automatically handle unknown categories and infrequent categories. .. versionadded:: 1.6 The option `"warn"` was added in 1.6.	'ignore'
	categories categories: 'auto' or a list of array-like, default='auto' Categories (unique values) per feature: - 'auto' : Determine categories automatically from the training data. - list : ``categories[i]`` holds the categories expected in the ith column. The passed categories should not mix strings and numeric values within a single feature, and should be sorted in case of numeric values. The used categories can be found in the ``categories_`` attribute. .. versionadded:: 0.20	'auto'
	min_frequency min_frequency: int or float, default=None Specifies the minimum frequency below which a category will be considered infrequent. - If `int`, categories with a smaller cardinality will be considered infrequent. - If `float`, categories with a smaller cardinality than `min_frequency * n_samples` will be considered infrequent. .. versionadded:: 1.1 Read more in the :ref:`User Guide <encoder_infrequent_categories>`.	None
	max_categories max_categories: int, default=None Specifies an upper limit to the number of output features for each input feature when considering infrequent categories. If there are infrequent categories, `max_categories` includes the category representing the infrequent categories along with the frequent categories. If `None`, there is no limit to the number of output features. .. versionadded:: 1.1 Read more in the :ref:`User Guide <encoder_infrequent_categories>`.	None
	feature_name_combiner feature_name_combiner: "concat" or callable, default="concat" Callable with signature `def callable(input_feature, category)` that returns a string. This is used to create feature names to be returned by :meth:`get_feature_names_out`. `"concat"` concatenates encoded feature name and category with `feature + "_" + str(category)`.E.g. feature X with values 1, 6, 7 create feature names `X_1, X_6, X_7`. .. versionadded:: 1.3	'concat'

high_cardinality

StringEncoder

Parameters

	n_components	30
	vectorizer	'tfidf'
	ngram_range	(3, ...)
	analyzer	'char_wb'
	stop_words	None
	random_state	None
	vocabulary	None

30 features

mean radius

mean texture

mean perimeter

mean area

mean smoothness

mean compactness

mean concavity

mean concave points

mean symmetry

mean fractal dimension

radius error

texture error

perimeter error

area error

smoothness error

compactness error

concavity error

concave points error

symmetry error

fractal dimension error

worst radius

worst texture

worst perimeter

worst area

worst smoothness

worst compactness

worst concavity

worst concave points

worst symmetry

worst fractal dimension

SimpleImputer

Parameters

	add_indicator add_indicator: bool, default=False If True, a :class:`MissingIndicator` transform will stack onto output of the imputer's transform. This allows a predictive estimator to account for missingness despite imputation. If a feature has no missing values at fit/train time, the feature won't appear on the missing indicator even if there are missing values at transform/test time.	True
	missing_values missing_values: int, float, str, np.nan, None or pandas.NA, default=np.nan The placeholder for the missing values. All occurrences of `missing_values` will be imputed. For pandas' dataframes with nullable integer dtypes with missing values, `missing_values` can be set to either `np.nan` or `pd.NA`.	nan
	strategy strategy: str or Callable, default='mean' The imputation strategy. - If "mean", then replace missing values using the mean along each column. Can only be used with numeric data. - If "median", then replace missing values using the median along each column. Can only be used with numeric data. - If "most_frequent", then replace missing using the most frequent value along each column. Can be used with strings or numeric data. If there is more than one such value, only the smallest is returned. - If "constant", then replace missing values with fill_value. Can be used with strings or numeric data. - If an instance of Callable, then replace missing values using the scalar statistic returned by running the callable over a dense 1d array containing non-missing values of each column. .. versionadded:: 0.20 strategy="constant" for fixed value imputation. .. versionadded:: 1.5 strategy=callable for custom value imputation.	'mean'
	fill_value fill_value: str or numerical value, default=None When strategy == "constant", `fill_value` is used to replace all occurrences of missing_values. For string or object data types, `fill_value` must be a string. If `None`, `fill_value` will be 0 when imputing numerical data and "missing_value" for strings or object data types.	None
	copy copy: bool, default=True If True, a copy of X will be created. If False, imputation will be done in-place whenever possible. Note that, in the following cases, a new copy will always be made, even if `copy=False`: - If `X` is not an array of floating values; - If `X` is encoded as a CSR matrix; - If `add_indicator=True`.	True
	keep_empty_features keep_empty_features: bool, default=False If True, features that consist exclusively of missing values when `fit` is called are returned in results when `transform` is called. The imputed value is always `0` except when `strategy="constant"` in which case `fill_value` will be used instead. .. versionadded:: 1.2	False

Fitted attributes

Name	Type	Value
feature_names_in_ feature_names_in_: ndarray of shape (`n_features_in_`,) Names of features seen during :term:`fit`. Defined only when `X` has feature names that are all strings. .. versionadded:: 1.0	ndarray[object](30,)	['mean radius','mean texture','mean perimeter',...,'worst concave points', 'worst symmetry','worst fractal dimension']
indicator_ indicator_: :class:`~sklearn.impute.MissingIndicator` Indicator used to add binary indicators for missing values. `None` if `add_indicator=False`.	MissingIndicator	MissingIndica..._on_new=False)
n_features_in_ n_features_in_: int Number of features seen during :term:`fit`. .. versionadded:: 0.24	int	30
statistics_ statistics_: array of shape (n_features,) The imputation fill value for each feature. Computing statistics can result in `np.nan` values. During :meth:`transform`, features corresponding to `np.nan` statistics will be discarded.	ndarray[float64](30,)	[14.11,19.15,91.82,..., 0.11, 0.29, 0.08]

30 features

mean radius

mean texture

mean perimeter

mean area

mean smoothness

mean compactness

mean concavity

mean concave points

mean symmetry

mean fractal dimension

radius error

texture error

perimeter error

area error

smoothness error

compactness error

concavity error

concave points error

symmetry error

fractal dimension error

worst radius

worst texture

worst perimeter

worst area

worst smoothness

worst compactness

worst concavity

worst concave points

worst symmetry

worst fractal dimension

SquashingScaler

Parameters

	max_absolute_value	5
	quantile_range	(25.0, ...)

Fitted attributes

Name	Type	Value
minmax_cols_	ndarray[bool](30,)	[False,False,False,...,False,False,False]
minmax_scaler_	NoneType	None
n_features_in_	int	30
robust_cols_	ndarray[bool](30,)	[ True, True, True,..., True, True, True]
robust_scaler_	RobustScaler	RobustScaler()
zero_cols_	ndarray[bool](30,)	[False,False,False,...,False,False,False]

30 features

x10

x11

x12

x13

x14

x15

x16

x17

x18

x19

x20

x21

x22

x23

x24

x25

x26

x27

x28

x29

LogisticRegression

Parameters

	C C: float, default=1.0 Inverse of regularization strength; must be a positive float. Like in support vector machines, smaller values specify stronger regularization. `C=np.inf` results in unpenalized logistic regression. For a visual example on the effect of tuning the `C` parameter with an L1 penalty, see: :ref:`sphx_glr_auto_examples_linear_model_plot_logistic_path.py`.	np.float64(0....9144011798311)
	max_iter max_iter: int, default=100 Maximum number of iterations taken for the solvers to converge.	1000
	penalty penalty: {'l1', 'l2', 'elasticnet', None}, default='l2' Specify the norm of the penalty: - `None`: no penalty is added; - `'l2'`: add an L2 penalty term and it is the default choice; - `'l1'`: add an L1 penalty term; - `'elasticnet'`: both L1 and L2 penalty terms are added. .. warning:: Some penalties may not work with some solvers. See the parameter `solver` below, to know the compatibility between the penalty and solver. .. versionadded:: 0.19 l1 penalty with SAGA solver (allowing 'multinomial' + L1) .. deprecated:: 1.8 `penalty` was deprecated in version 1.8 and will be removed in 1.10. Use `l1_ratio` and `C` instead. `l1_ratio=0` for `penalty='l2'`, `l1_ratio=1` for `penalty='l1'`, `l1_ratio` set to any float between 0 and 1 for `penalty='elasticnet'`, and `C=np.inf` for `penalty=None`.	'deprecated'
	l1_ratio l1_ratio: float, default=0.0 The Elastic-Net mixing parameter, with `0 <= l1_ratio <= 1`. Setting `l1_ratio=1` gives a pure L1-penalty, setting `l1_ratio=0` a pure L2-penalty. Any value between 0 and 1 gives an Elastic-Net penalty of the form `l1_ratio * L1 + (1 - l1_ratio) * L2`. .. warning:: Certain values of `l1_ratio`, i.e. some penalties, may not work with some solvers. See the parameter `solver` below, to know the compatibility between the penalty and solver. .. versionchanged:: 1.8 Default value changed from None to 0.0. .. deprecated:: 1.8 `None` is deprecated and will be removed in version 1.10. Always use `l1_ratio` to specify the penalty type.	0.0
	dual dual: bool, default=False Dual (constrained) or primal (regularized, see also :ref:`this equation <regularized-logistic-loss>`) formulation. Dual formulation is only implemented for l2 penalty with liblinear solver. Prefer `dual=False` when n_samples > n_features.	False
	tol tol: float, default=1e-4 Tolerance for stopping criteria.	0.0001
	fit_intercept fit_intercept: bool, default=True Specifies if a constant (a.k.a. bias or intercept) should be added to the decision function.	True
	intercept_scaling intercept_scaling: float, default=1 Useful only when the solver `liblinear` is used and `self.fit_intercept` is set to `True`. In this case, `x` becomes `[x, self.intercept_scaling]`, i.e. a "synthetic" feature with constant value equal to `intercept_scaling` is appended to the instance vector. The intercept becomes ``intercept_scaling * synthetic_feature_weight``. .. note:: The synthetic feature weight is subject to L1 or L2 regularization as all other features. To lessen the effect of regularization on synthetic feature weight (and therefore on the intercept) `intercept_scaling` has to be increased.	1
	class_weight class_weight: dict or 'balanced', default=None Weights associated with classes in the form ``{class_label: weight}``. If not given, all classes are supposed to have weight one. The "balanced" mode uses the values of y to automatically adjust weights inversely proportional to class frequencies in the input data as ``n_samples / (n_classes * np.bincount(y))``. Note that these weights will be multiplied with sample_weight (passed through the fit method) if sample_weight is specified. .. versionadded:: 0.17 class_weight='balanced'	None
	random_state random_state: int, RandomState instance, default=None Used when ``solver`` == 'sag', 'saga' or 'liblinear' to shuffle the data. See :term:`Glossary <random_state>` for details.	None
	solver solver: {'lbfgs', 'liblinear', 'newton-cg', 'newton-cholesky', 'sag', 'saga'}, default='lbfgs' Algorithm to use in the optimization problem. Default is 'lbfgs'. To choose a solver, you might want to consider the following aspects: - 'lbfgs' is a good default solver because it works reasonably well for a wide class of problems. - For :term:`multiclass` problems (`n_classes >= 3`), all solvers except 'liblinear' minimize the full multinomial loss, 'liblinear' will raise an error. - 'newton-cholesky' is a good choice for `n_samples` >> `n_features * n_classes`, especially with one-hot encoded categorical features with rare categories. Be aware that the memory usage of this solver has a quadratic dependency on `n_features * n_classes` because it explicitly computes the full Hessian matrix. - For small datasets, 'liblinear' is a good choice, whereas 'sag' and 'saga' are faster for large ones; - 'liblinear' can only handle binary classification by default. To apply a one-versus-rest scheme for the multiclass setting one can wrap it with the :class:`~sklearn.multiclass.OneVsRestClassifier`. .. warning:: The choice of the algorithm depends on the penalty chosen (`l1_ratio=0` for L2-penalty, `l1_ratio=1` for L1-penalty and `0 < l1_ratio < 1` for Elastic-Net) and on (multinomial) multiclass support: ================= ======================== ====================== solver l1_ratio multinomial multiclass ================= ======================== ====================== 'lbfgs' l1_ratio=0 yes 'liblinear' l1_ratio=1 or l1_ratio=0 no 'newton-cg' l1_ratio=0 yes 'newton-cholesky' l1_ratio=0 yes 'sag' l1_ratio=0 yes 'saga' 0<=l1_ratio<=1 yes ================= ======================== ====================== .. note:: 'sag' and 'saga' fast convergence is only guaranteed on features with approximately the same scale. You can preprocess the data with a scaler from :mod:`sklearn.preprocessing`. .. seealso:: Refer to the :ref:`User Guide <Logistic_regression>` for more information regarding :class:`LogisticRegression` and more specifically the :ref:`Table <logistic_regression_solvers>` summarizing solver/penalty supports. .. versionadded:: 0.17 Stochastic Average Gradient (SAG) descent solver. Multinomial support in version 0.18. .. versionadded:: 0.19 SAGA solver. .. versionchanged:: 0.22 The default solver changed from 'liblinear' to 'lbfgs' in 0.22. .. versionadded:: 1.2 newton-cholesky solver. Multinomial support in version 1.6.	'lbfgs'
	verbose verbose: int, default=0 For the liblinear and lbfgs solvers set verbose to any positive number for verbosity.	0
	warm_start warm_start: bool, default=False When set to True, reuse the solution of the previous call to fit as initialization, otherwise, just erase the previous solution. Useless for liblinear solver. See :term:`the Glossary <warm_start>`. .. versionadded:: 0.17 warm_start to support lbfgs, newton-cg, sag, saga solvers.	False
	n_jobs n_jobs: int, default=None Does not have any effect. .. deprecated:: 1.8 `n_jobs` is deprecated in version 1.8 and will be removed in 1.10.	None

Fitted attributes

Name	Type	Value
classes_ classes_: ndarray of shape (n_classes, ) A list of class labels known to the classifier.	ndarray[int64](2,)	[0,1]
coef_ coef_: ndarray or CSR matrix of shape (1, n_features) or (n_classes, n_features) Coefficients of the features in the decision function. `coef_` is of shape (1, n_features) when the given problem is binary. By default, it will be created as a dense array, but can be turned to sparse (CSR format) through :meth:`sparsify` (which can be beneficial under L1 regularization when many coefficients are zero), and back to dense through :meth:`densify`.	ndarray[float32](1, 30)	[[-0.35,-0.48,-0.34,...,-0.51,-0.44,-0.26]]
intercept_ intercept_: ndarray of shape (1,) or (n_classes,) Intercept (a.k.a. bias) added to the decision function. If `fit_intercept` is set to False, the intercept is set to zero. `intercept_` is of shape (1,) when the given problem is binary.	ndarray[float32](1,)	[2.16]
n_features_in_ n_features_in_: int Number of features seen during :term:`fit`. .. versionadded:: 0.24	int	30
n_iter_ n_iter_: ndarray of shape (1, ) Actual number of iterations for all classes. .. versionchanged:: 0.20 In SciPy <= 1.0.0 the number of lbfgs iterations may exceed ``max_iter``. ``n_iter_`` will now report at most ``max_iter``.	ndarray[int32](1,)	[12]

Column	Column name	dtype	Is sorted	Unique values	Mean	Std	Min	Median	Max
0	mean radius	Float64DType	False	456 (80.1%)	14.1	3.52	6.98	13.4	28.1
1	mean texture	Float64DType	False	479 (84.2%)	19.3	4.30	9.71	18.8	39.3
2	mean perimeter	Float64DType	False	522 (91.7%)	92.0	24.3	43.8	86.2	188.
3	mean area	Float64DType	False	539 (94.7%)	655.	352.	144.	551.	2.50e+03
4	mean smoothness	Float64DType	False	474 (83.3%)	0.0964	0.0141	0.0526	0.0959	0.163
5	mean compactness	Float64DType	False	537 (94.4%)	0.104	0.0528	0.0194	0.0926	0.345
6	mean concavity	Float64DType	False	537 (94.4%)	0.0888	0.0797	0.00	0.0615	0.427
7	mean concave points	Float64DType	False	542 (95.3%)	0.0489	0.0388	0.00	0.0335	0.201
8	mean symmetry	Float64DType	False	432 (75.9%)	0.181	0.0274	0.106	0.179	0.304
9	mean fractal dimension	Float64DType	False	499 (87.7%)	0.0628	0.00706	0.0500	0.0615	0.0974
10	radius error	Float64DType	False	540 (94.9%)	0.405	0.277	0.112	0.324	2.87
11	texture error	Float64DType	False	519 (91.2%)	1.22	0.552	0.360	1.11	4.88
12	perimeter error	Float64DType	False	533 (93.7%)	2.87	2.02	0.757	2.29	22.0
13	area error	Float64DType	False	528 (92.8%)	40.3	45.5	6.80	24.5	542.
14	smoothness error	Float64DType	False	547 (96.1%)	0.00704	0.00300	0.00171	0.00638	0.0311
15	compactness error	Float64DType	False	541 (95.1%)	0.0255	0.0179	0.00225	0.0204	0.135
16	concavity error	Float64DType	False	533 (93.7%)	0.0319	0.0302	0.00	0.0259	0.396
17	concave points error	Float64DType	False	507 (89.1%)	0.0118	0.00617	0.00	0.0109	0.0528
18	symmetry error	Float64DType	False	498 (87.5%)	0.0205	0.00827	0.00788	0.0187	0.0790
19	fractal dimension error	Float64DType	False	545 (95.8%)	0.00379	0.00265	0.000895	0.00319	0.0298
20	worst radius	Float64DType	False	457 (80.3%)	16.3	4.83	7.93	15.0	36.0
21	worst texture	Float64DType	False	511 (89.8%)	25.7	6.15	12.0	25.4	49.5
22	worst perimeter	Float64DType	False	514 (90.3%)	107.	33.6	50.4	97.7	251.
23	worst area	Float64DType	False	544 (95.6%)	881.	569.	185.	686.	4.25e+03
24	worst smoothness	Float64DType	False	411 (72.2%)	0.132	0.0228	0.0712	0.131	0.223
25	worst compactness	Float64DType	False	529 (93.0%)	0.254	0.157	0.0273	0.212	1.06
26	worst concavity	Float64DType	False	539 (94.7%)	0.272	0.209	0.00	0.227	1.25
27	worst concave points	Float64DType	False	492 (86.5%)	0.115	0.0657	0.00	0.0999	0.291
28	worst symmetry	Float64DType	False	500 (87.9%)	0.290	0.0619	0.157	0.282	0.664
29	worst fractal dimension	Float64DType	False	535 (94.0%)	0.0839	0.0181	0.0550	0.0800	0.207
30	target	Int64DType	False	2 (0.4%)	0.627	0.484	0	1	1

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Pipeline(steps=[('tablevectorizer',
                     TableVectorizer(datetime=DatetimeEncoder(periodic_encoding='spline'))),
                    ('simpleimputer', SimpleImputer(add_indicator=True)),
                    ('squashingscaler', SquashingScaler(max_absolute_value=5)),
                    ('logisticregression',
                     LogisticRegression(C=np.float64(0.34145488738336005),
                                        max_iter=1000))])

Pipeline

Parameters

	steps steps: list of tuples List of (name of step, estimator) tuples that are to be chained in sequential order. To be compatible with the scikit-learn API, all steps must define `fit`. All non-last steps must also define `transform`. See :ref:`Combining Estimators <combining_estimators>` for more details.	[('tablevectorizer', ...), ('simpleimputer', ...), ...]
	transform_input transform_input: list of str, default=None The names of the :term:`metadata` parameters that should be transformed by the pipeline before passing it to the step consuming it. This enables transforming some input arguments to ``fit`` (other than ``X``) to be transformed by the steps of the pipeline up to the step which requires them. Requirement is defined via :ref:`metadata routing <metadata_routing>`. For instance, this can be used to pass a validation set through the pipeline. You can only set this if metadata routing is enabled, which you can enable using ``sklearn.set_config(enable_metadata_routing=True)``. .. versionadded:: 1.6	None
	memory memory: str or object with the joblib.Memory interface, default=None Used to cache the fitted transformers of the pipeline. The last step will never be cached, even if it is a transformer. By default, no caching is performed. If a string is given, it is the path to the caching directory. Enabling caching triggers a clone of the transformers before fitting. Therefore, the transformer instance given to the pipeline cannot be inspected directly. Use the attribute ``named_steps`` or ``steps`` to inspect estimators within the pipeline. Caching the transformers is advantageous when fitting is time consuming. See :ref:`sphx_glr_auto_examples_neighbors_plot_caching_nearest_neighbors.py` for an example on how to enable caching.	None
	verbose verbose: bool, default=False If True, the time elapsed while fitting each step will be printed as it is completed.	False

Fitted attributes

Name	Type	Value
classes_ classes_: ndarray of shape (n_classes,) The classes labels. Only exist if the last step of the pipeline is a classifier.	ndarray[int64](2,)	[0,1]
feature_names_in_ feature_names_in_: ndarray of shape (`n_features_in_`,) Names of features seen during :term:`fit`. Only defined if the underlying estimator exposes such an attribute when fit. .. versionadded:: 1.0	list	['me...us', 'me...re', 'me...er', 'me...ea', ...]
n_features_in_ n_features_in_: int Number of features seen during :term:`fit`. Only defined if the underlying first estimator in `steps` exposes such an attribute when fit. .. versionadded:: 0.24	int	30

tablevectorizer: TableVectorizer

Parameters

	low_cardinality	OneHotEncoder..._output=False)
	high_cardinality	StringEncoder()
	numeric	PassThrough()
	datetime	DatetimeEncod...ding='spline')
	cardinality_threshold	40
	specific_transformers	()
	drop_null_fraction	1.0
	drop_if_constant	False
	drop_if_unique	False
	datetime_format	None
	null_strings	None
	n_jobs	None

Fitted attributes

Name	Type	Value
all_outputs_	list	['me...us', 'me...re', 'me...er', 'me...ea', ...]
all_processing_steps_	dict	{'ar...or': [DropUninformative(), ToFloat(), PassThrough(), {'area error': ToFloat()}], 'co...or': [DropUninformative(), ToFloat(), PassThrough(), {'compactness...r': ToFloat()}], 'co...or': [DropUninformative(), ToFloat(), PassThrough(), {'concave poi...r': ToFloat()}], 'co...or': [DropUninformative(), ToFloat(), PassThrough(), {'concavity error': ToFloat()}], ...}
column_to_kind_	dict	{'ar...or': 'numeric', 'co...or': 'numeric', 'co...or': 'numeric', 'co...or': 'numeric', ...}
feature_names_in_	list	['me...us', 'me...re', 'me...er', 'me...ea', ...]
input_to_outputs_	dict	{'ar...or': ['ar...or'], 'co...or': ['co...or'], 'co...or': ['co...or'], 'co...or': ['co...or'], ...}
kind_to_columns_	dict	{'da...me': [], 'hi...ty': [], 'lo...ty': [], 'numeric': ['me...us', 'me...re', 'me...er', 'me...ea', ...], ...}
n_features_in_	int	30
output_to_input_	dict	{'ar...or': 'ar...or', 'co...or': 'co...or', 'co...or': 'co...or', 'co...or': 'co...or', ...}
transformers_	dict	{'ar...or': PassThrough(), 'co...or': PassThrough(), 'co...or': PassThrough(), 'co...or': PassThrough(), ...}

numeric

['mean radius', 'mean texture', 'mean perimeter', 'mean area', 'mean smoothness', 'mean compactness', 'mean concavity', 'mean concave points', 'mean symmetry', 'mean fractal dimension', 'radius error', 'texture error', 'perimeter error', 'area error', 'smoothness error', 'compactness error', 'concavity error', 'concave points error', 'symmetry error', 'fractal dimension error', 'worst radius', 'worst texture', 'worst perimeter', 'worst area', 'worst smoothness', 'worst compactness', 'worst concavity', 'worst concave points', 'worst symmetry', 'worst fractal dimension']

PassThrough

Parameters

datetime

DatetimeEncoder

Parameters

	periodic_encoding	'spline'
	resolution	'hour'
	add_weekday	False
	add_total_seconds	True
	add_day_of_year	False

low_cardinality

OneHotEncoder

Parameters

	drop drop: {'first', 'if_binary'} or an array-like of shape (n_features,), default=None Specifies a methodology to use to drop one of the categories per feature. This is useful in situations where perfectly collinear features cause problems, such as when feeding the resulting data into an unregularized linear regression model. However, dropping one category breaks the symmetry of the original representation and can therefore induce a bias in downstream models, for instance for penalized linear classification or regression models. - None : retain all features (the default). - 'first' : drop the first category in each feature. If only one category is present, the feature will be dropped entirely. - 'if_binary' : drop the first category in each feature with two categories. Features with 1 or more than 2 categories are left intact. - array : ``drop[i]`` is the category in feature ``X[:, i]`` that should be dropped. When `max_categories` or `min_frequency` is configured to group infrequent categories, the dropping behavior is handled after the grouping. .. versionadded:: 0.21 The parameter `drop` was added in 0.21. .. versionchanged:: 0.23 The option `drop='if_binary'` was added in 0.23. .. versionchanged:: 1.1 Support for dropping infrequent categories.	'if_binary'
	sparse_output sparse_output: bool, default=True When ``True``, it returns a SciPy sparse matrix/array in "Compressed Sparse Row" (CSR) format. .. versionadded:: 1.2 `sparse` was renamed to `sparse_output`	False
	dtype dtype: number type, default=np.float64 Desired dtype of output.	'float32'
	handle_unknown handle_unknown: {'error', 'ignore', 'infrequent_if_exist', 'warn'}, default='error' Specifies the way unknown categories are handled during :meth:`transform`. - 'error' : Raise an error if an unknown category is present during transform. - 'ignore' : When an unknown category is encountered during transform, the resulting one-hot encoded columns for this feature will be all zeros. In the inverse transform, an unknown category will be denoted as None. - 'infrequent_if_exist' : When an unknown category is encountered during transform, the resulting one-hot encoded columns for this feature will map to the infrequent category if it exists. The infrequent category will be mapped to the last position in the encoding. During inverse transform, an unknown category will be mapped to the category denoted `'infrequent'` if it exists. If the `'infrequent'` category does not exist, then :meth:`transform` and :meth:`inverse_transform` will handle an unknown category as with `handle_unknown='ignore'`. Infrequent categories exist based on `min_frequency` and `max_categories`. Read more in the :ref:`User Guide <encoder_infrequent_categories>`. - 'warn' : When an unknown category is encountered during transform a warning is issued, and the encoding then proceeds as described for `handle_unknown="infrequent_if_exist"`. .. versionchanged:: 1.1 `'infrequent_if_exist'` was added to automatically handle unknown categories and infrequent categories. .. versionadded:: 1.6 The option `"warn"` was added in 1.6.	'ignore'
	categories categories: 'auto' or a list of array-like, default='auto' Categories (unique values) per feature: - 'auto' : Determine categories automatically from the training data. - list : ``categories[i]`` holds the categories expected in the ith column. The passed categories should not mix strings and numeric values within a single feature, and should be sorted in case of numeric values. The used categories can be found in the ``categories_`` attribute. .. versionadded:: 0.20	'auto'
	min_frequency min_frequency: int or float, default=None Specifies the minimum frequency below which a category will be considered infrequent. - If `int`, categories with a smaller cardinality will be considered infrequent. - If `float`, categories with a smaller cardinality than `min_frequency * n_samples` will be considered infrequent. .. versionadded:: 1.1 Read more in the :ref:`User Guide <encoder_infrequent_categories>`.	None
	max_categories max_categories: int, default=None Specifies an upper limit to the number of output features for each input feature when considering infrequent categories. If there are infrequent categories, `max_categories` includes the category representing the infrequent categories along with the frequent categories. If `None`, there is no limit to the number of output features. .. versionadded:: 1.1 Read more in the :ref:`User Guide <encoder_infrequent_categories>`.	None
	feature_name_combiner feature_name_combiner: "concat" or callable, default="concat" Callable with signature `def callable(input_feature, category)` that returns a string. This is used to create feature names to be returned by :meth:`get_feature_names_out`. `"concat"` concatenates encoded feature name and category with `feature + "_" + str(category)`.E.g. feature X with values 1, 6, 7 create feature names `X_1, X_6, X_7`. .. versionadded:: 1.3	'concat'

high_cardinality

StringEncoder

Parameters

	n_components	30
	vectorizer	'tfidf'
	ngram_range	(3, ...)
	analyzer	'char_wb'
	stop_words	None
	random_state	None
	vocabulary	None

30 features

mean radius

mean texture

mean perimeter

mean area

mean smoothness

mean compactness

mean concavity

mean concave points

mean symmetry

mean fractal dimension

radius error

texture error

perimeter error

area error

smoothness error

compactness error

concavity error

concave points error

symmetry error

fractal dimension error

worst radius

worst texture

worst perimeter

worst area

worst smoothness

worst compactness

worst concavity

worst concave points

worst symmetry

worst fractal dimension

SimpleImputer

Parameters

	add_indicator add_indicator: bool, default=False If True, a :class:`MissingIndicator` transform will stack onto output of the imputer's transform. This allows a predictive estimator to account for missingness despite imputation. If a feature has no missing values at fit/train time, the feature won't appear on the missing indicator even if there are missing values at transform/test time.	True
	missing_values missing_values: int, float, str, np.nan, None or pandas.NA, default=np.nan The placeholder for the missing values. All occurrences of `missing_values` will be imputed. For pandas' dataframes with nullable integer dtypes with missing values, `missing_values` can be set to either `np.nan` or `pd.NA`.	nan
	strategy strategy: str or Callable, default='mean' The imputation strategy. - If "mean", then replace missing values using the mean along each column. Can only be used with numeric data. - If "median", then replace missing values using the median along each column. Can only be used with numeric data. - If "most_frequent", then replace missing using the most frequent value along each column. Can be used with strings or numeric data. If there is more than one such value, only the smallest is returned. - If "constant", then replace missing values with fill_value. Can be used with strings or numeric data. - If an instance of Callable, then replace missing values using the scalar statistic returned by running the callable over a dense 1d array containing non-missing values of each column. .. versionadded:: 0.20 strategy="constant" for fixed value imputation. .. versionadded:: 1.5 strategy=callable for custom value imputation.	'mean'
	fill_value fill_value: str or numerical value, default=None When strategy == "constant", `fill_value` is used to replace all occurrences of missing_values. For string or object data types, `fill_value` must be a string. If `None`, `fill_value` will be 0 when imputing numerical data and "missing_value" for strings or object data types.	None
	copy copy: bool, default=True If True, a copy of X will be created. If False, imputation will be done in-place whenever possible. Note that, in the following cases, a new copy will always be made, even if `copy=False`: - If `X` is not an array of floating values; - If `X` is encoded as a CSR matrix; - If `add_indicator=True`.	True
	keep_empty_features keep_empty_features: bool, default=False If True, features that consist exclusively of missing values when `fit` is called are returned in results when `transform` is called. The imputed value is always `0` except when `strategy="constant"` in which case `fill_value` will be used instead. .. versionadded:: 1.2	False

Fitted attributes

Name	Type	Value
feature_names_in_ feature_names_in_: ndarray of shape (`n_features_in_`,) Names of features seen during :term:`fit`. Defined only when `X` has feature names that are all strings. .. versionadded:: 1.0	ndarray[object](30,)	['mean radius','mean texture','mean perimeter',...,'worst concave points', 'worst symmetry','worst fractal dimension']
indicator_ indicator_: :class:`~sklearn.impute.MissingIndicator` Indicator used to add binary indicators for missing values. `None` if `add_indicator=False`.	MissingIndicator	MissingIndica..._on_new=False)
n_features_in_ n_features_in_: int Number of features seen during :term:`fit`. .. versionadded:: 0.24	int	30
statistics_ statistics_: array of shape (n_features,) The imputation fill value for each feature. Computing statistics can result in `np.nan` values. During :meth:`transform`, features corresponding to `np.nan` statistics will be discarded.	ndarray[float64](30,)	[14.11,19.15,91.82,..., 0.11, 0.29, 0.08]

30 features

mean radius

mean texture

mean perimeter

mean area

mean smoothness

mean compactness

mean concavity

mean concave points

mean symmetry

mean fractal dimension

radius error

texture error

perimeter error

area error

smoothness error

compactness error

concavity error

concave points error

symmetry error

fractal dimension error

worst radius

worst texture

worst perimeter

worst area

worst smoothness

worst compactness

worst concavity

worst concave points

worst symmetry

worst fractal dimension

SquashingScaler

Parameters

	max_absolute_value	5
	quantile_range	(25.0, ...)

Fitted attributes

Name	Type	Value
minmax_cols_	ndarray[bool](30,)	[False,False,False,...,False,False,False]
minmax_scaler_	NoneType	None
n_features_in_	int	30
robust_cols_	ndarray[bool](30,)	[ True, True, True,..., True, True, True]
robust_scaler_	RobustScaler	RobustScaler()
zero_cols_	ndarray[bool](30,)	[False,False,False,...,False,False,False]

30 features

x10

x11

x12

x13

x14

x15

x16

x17

x18

x19

x20

x21

x22

x23

x24

x25

x26

x27

x28

x29

LogisticRegression

Parameters

	C C: float, default=1.0 Inverse of regularization strength; must be a positive float. Like in support vector machines, smaller values specify stronger regularization. `C=np.inf` results in unpenalized logistic regression. For a visual example on the effect of tuning the `C` parameter with an L1 penalty, see: :ref:`sphx_glr_auto_examples_linear_model_plot_logistic_path.py`.	np.float64(0....5488738336005)
	max_iter max_iter: int, default=100 Maximum number of iterations taken for the solvers to converge.	1000
	penalty penalty: {'l1', 'l2', 'elasticnet', None}, default='l2' Specify the norm of the penalty: - `None`: no penalty is added; - `'l2'`: add an L2 penalty term and it is the default choice; - `'l1'`: add an L1 penalty term; - `'elasticnet'`: both L1 and L2 penalty terms are added. .. warning:: Some penalties may not work with some solvers. See the parameter `solver` below, to know the compatibility between the penalty and solver. .. versionadded:: 0.19 l1 penalty with SAGA solver (allowing 'multinomial' + L1) .. deprecated:: 1.8 `penalty` was deprecated in version 1.8 and will be removed in 1.10. Use `l1_ratio` and `C` instead. `l1_ratio=0` for `penalty='l2'`, `l1_ratio=1` for `penalty='l1'`, `l1_ratio` set to any float between 0 and 1 for `penalty='elasticnet'`, and `C=np.inf` for `penalty=None`.	'deprecated'
	l1_ratio l1_ratio: float, default=0.0 The Elastic-Net mixing parameter, with `0 <= l1_ratio <= 1`. Setting `l1_ratio=1` gives a pure L1-penalty, setting `l1_ratio=0` a pure L2-penalty. Any value between 0 and 1 gives an Elastic-Net penalty of the form `l1_ratio * L1 + (1 - l1_ratio) * L2`. .. warning:: Certain values of `l1_ratio`, i.e. some penalties, may not work with some solvers. See the parameter `solver` below, to know the compatibility between the penalty and solver. .. versionchanged:: 1.8 Default value changed from None to 0.0. .. deprecated:: 1.8 `None` is deprecated and will be removed in version 1.10. Always use `l1_ratio` to specify the penalty type.	0.0
	dual dual: bool, default=False Dual (constrained) or primal (regularized, see also :ref:`this equation <regularized-logistic-loss>`) formulation. Dual formulation is only implemented for l2 penalty with liblinear solver. Prefer `dual=False` when n_samples > n_features.	False
	tol tol: float, default=1e-4 Tolerance for stopping criteria.	0.0001
	fit_intercept fit_intercept: bool, default=True Specifies if a constant (a.k.a. bias or intercept) should be added to the decision function.	True
	intercept_scaling intercept_scaling: float, default=1 Useful only when the solver `liblinear` is used and `self.fit_intercept` is set to `True`. In this case, `x` becomes `[x, self.intercept_scaling]`, i.e. a "synthetic" feature with constant value equal to `intercept_scaling` is appended to the instance vector. The intercept becomes ``intercept_scaling * synthetic_feature_weight``. .. note:: The synthetic feature weight is subject to L1 or L2 regularization as all other features. To lessen the effect of regularization on synthetic feature weight (and therefore on the intercept) `intercept_scaling` has to be increased.	1
	class_weight class_weight: dict or 'balanced', default=None Weights associated with classes in the form ``{class_label: weight}``. If not given, all classes are supposed to have weight one. The "balanced" mode uses the values of y to automatically adjust weights inversely proportional to class frequencies in the input data as ``n_samples / (n_classes * np.bincount(y))``. Note that these weights will be multiplied with sample_weight (passed through the fit method) if sample_weight is specified. .. versionadded:: 0.17 class_weight='balanced'	None
	random_state random_state: int, RandomState instance, default=None Used when ``solver`` == 'sag', 'saga' or 'liblinear' to shuffle the data. See :term:`Glossary <random_state>` for details.	None
	solver solver: {'lbfgs', 'liblinear', 'newton-cg', 'newton-cholesky', 'sag', 'saga'}, default='lbfgs' Algorithm to use in the optimization problem. Default is 'lbfgs'. To choose a solver, you might want to consider the following aspects: - 'lbfgs' is a good default solver because it works reasonably well for a wide class of problems. - For :term:`multiclass` problems (`n_classes >= 3`), all solvers except 'liblinear' minimize the full multinomial loss, 'liblinear' will raise an error. - 'newton-cholesky' is a good choice for `n_samples` >> `n_features * n_classes`, especially with one-hot encoded categorical features with rare categories. Be aware that the memory usage of this solver has a quadratic dependency on `n_features * n_classes` because it explicitly computes the full Hessian matrix. - For small datasets, 'liblinear' is a good choice, whereas 'sag' and 'saga' are faster for large ones; - 'liblinear' can only handle binary classification by default. To apply a one-versus-rest scheme for the multiclass setting one can wrap it with the :class:`~sklearn.multiclass.OneVsRestClassifier`. .. warning:: The choice of the algorithm depends on the penalty chosen (`l1_ratio=0` for L2-penalty, `l1_ratio=1` for L1-penalty and `0 < l1_ratio < 1` for Elastic-Net) and on (multinomial) multiclass support: ================= ======================== ====================== solver l1_ratio multinomial multiclass ================= ======================== ====================== 'lbfgs' l1_ratio=0 yes 'liblinear' l1_ratio=1 or l1_ratio=0 no 'newton-cg' l1_ratio=0 yes 'newton-cholesky' l1_ratio=0 yes 'sag' l1_ratio=0 yes 'saga' 0<=l1_ratio<=1 yes ================= ======================== ====================== .. note:: 'sag' and 'saga' fast convergence is only guaranteed on features with approximately the same scale. You can preprocess the data with a scaler from :mod:`sklearn.preprocessing`. .. seealso:: Refer to the :ref:`User Guide <Logistic_regression>` for more information regarding :class:`LogisticRegression` and more specifically the :ref:`Table <logistic_regression_solvers>` summarizing solver/penalty supports. .. versionadded:: 0.17 Stochastic Average Gradient (SAG) descent solver. Multinomial support in version 0.18. .. versionadded:: 0.19 SAGA solver. .. versionchanged:: 0.22 The default solver changed from 'liblinear' to 'lbfgs' in 0.22. .. versionadded:: 1.2 newton-cholesky solver. Multinomial support in version 1.6.	'lbfgs'
	verbose verbose: int, default=0 For the liblinear and lbfgs solvers set verbose to any positive number for verbosity.	0
	warm_start warm_start: bool, default=False When set to True, reuse the solution of the previous call to fit as initialization, otherwise, just erase the previous solution. Useless for liblinear solver. See :term:`the Glossary <warm_start>`. .. versionadded:: 0.17 warm_start to support lbfgs, newton-cg, sag, saga solvers.	False
	n_jobs n_jobs: int, default=None Does not have any effect. .. deprecated:: 1.8 `n_jobs` is deprecated in version 1.8 and will be removed in 1.10.	None

Fitted attributes

Name	Type	Value
classes_ classes_: ndarray of shape (n_classes, ) A list of class labels known to the classifier.	ndarray[int64](2,)	[0,1]
coef_ coef_: ndarray or CSR matrix of shape (1, n_features) or (n_classes, n_features) Coefficients of the features in the decision function. `coef_` is of shape (1, n_features) when the given problem is binary. By default, it will be created as a dense array, but can be turned to sparse (CSR format) through :meth:`sparsify` (which can be beneficial under L1 regularization when many coefficients are zero), and back to dense through :meth:`densify`.	ndarray[float32](1, 30)	[[-0.37,-0.64,-0.37,...,-0.73,-0.58,-0.41]]
intercept_ intercept_: ndarray of shape (1,) or (n_classes,) Intercept (a.k.a. bias) added to the decision function. If `fit_intercept` is set to False, the intercept is set to zero. `intercept_` is of shape (1,) when the given problem is binary.	ndarray[float32](1,)	[2.58]
n_features_in_ n_features_in_: int Number of features seen during :term:`fit`. .. versionadded:: 0.24	int	30
n_iter_ n_iter_: ndarray of shape (1, ) Actual number of iterations for all classes. .. versionchanged:: 0.20 In SciPy <= 1.0.0 the number of lbfgs iterations may exceed ``max_iter``. ``n_iter_`` will now report at most ``max_iter``.	ndarray[int32](1,)	[14]

Column	Column name	dtype	Is sorted	Unique values	Mean	Std	Min	Median	Max
0	mean radius	Float64DType	False	456 (80.1%)	14.1	3.52	6.98	13.4	28.1
1	mean texture	Float64DType	False	479 (84.2%)	19.3	4.30	9.71	18.8	39.3
2	mean perimeter	Float64DType	False	522 (91.7%)	92.0	24.3	43.8	86.2	188.
3	mean area	Float64DType	False	539 (94.7%)	655.	352.	144.	551.	2.50e+03
4	mean smoothness	Float64DType	False	474 (83.3%)	0.0964	0.0141	0.0526	0.0959	0.163
5	mean compactness	Float64DType	False	537 (94.4%)	0.104	0.0528	0.0194	0.0926	0.345
6	mean concavity	Float64DType	False	537 (94.4%)	0.0888	0.0797	0.00	0.0615	0.427
7	mean concave points	Float64DType	False	542 (95.3%)	0.0489	0.0388	0.00	0.0335	0.201
8	mean symmetry	Float64DType	False	432 (75.9%)	0.181	0.0274	0.106	0.179	0.304
9	mean fractal dimension	Float64DType	False	499 (87.7%)	0.0628	0.00706	0.0500	0.0615	0.0974
10	radius error	Float64DType	False	540 (94.9%)	0.405	0.277	0.112	0.324	2.87
11	texture error	Float64DType	False	519 (91.2%)	1.22	0.552	0.360	1.11	4.88
12	perimeter error	Float64DType	False	533 (93.7%)	2.87	2.02	0.757	2.29	22.0
13	area error	Float64DType	False	528 (92.8%)	40.3	45.5	6.80	24.5	542.
14	smoothness error	Float64DType	False	547 (96.1%)	0.00704	0.00300	0.00171	0.00638	0.0311
15	compactness error	Float64DType	False	541 (95.1%)	0.0255	0.0179	0.00225	0.0204	0.135
16	concavity error	Float64DType	False	533 (93.7%)	0.0319	0.0302	0.00	0.0259	0.396
17	concave points error	Float64DType	False	507 (89.1%)	0.0118	0.00617	0.00	0.0109	0.0528
18	symmetry error	Float64DType	False	498 (87.5%)	0.0205	0.00827	0.00788	0.0187	0.0790
19	fractal dimension error	Float64DType	False	545 (95.8%)	0.00379	0.00265	0.000895	0.00319	0.0298
20	worst radius	Float64DType	False	457 (80.3%)	16.3	4.83	7.93	15.0	36.0
21	worst texture	Float64DType	False	511 (89.8%)	25.7	6.15	12.0	25.4	49.5
22	worst perimeter	Float64DType	False	514 (90.3%)	107.	33.6	50.4	97.7	251.
23	worst area	Float64DType	False	544 (95.6%)	881.	569.	185.	686.	4.25e+03
24	worst smoothness	Float64DType	False	411 (72.2%)	0.132	0.0228	0.0712	0.131	0.223
25	worst compactness	Float64DType	False	529 (93.0%)	0.254	0.157	0.0273	0.212	1.06
26	worst concavity	Float64DType	False	539 (94.7%)	0.272	0.209	0.00	0.227	1.25
27	worst concave points	Float64DType	False	492 (86.5%)	0.115	0.0657	0.00	0.0999	0.291
28	worst symmetry	Float64DType	False	500 (87.9%)	0.290	0.0619	0.157	0.282	0.664
29	worst fractal dimension	Float64DType	False	535 (94.0%)	0.0839	0.0181	0.0550	0.0800	0.207
30	target	Int64DType	False	2 (0.4%)	0.627	0.484	0	1	1

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Pipeline(steps=[('tablevectorizer',
                     TableVectorizer(datetime=DatetimeEncoder(periodic_encoding='spline'))),
                    ('simpleimputer', SimpleImputer(add_indicator=True)),
                    ('squashingscaler', SquashingScaler(max_absolute_value=5)),
                    ('logisticregression',
                     LogisticRegression(C=np.float64(1.0), max_iter=1000))])

Pipeline

Parameters

	steps steps: list of tuples List of (name of step, estimator) tuples that are to be chained in sequential order. To be compatible with the scikit-learn API, all steps must define `fit`. All non-last steps must also define `transform`. See :ref:`Combining Estimators <combining_estimators>` for more details.	[('tablevectorizer', ...), ('simpleimputer', ...), ...]
	transform_input transform_input: list of str, default=None The names of the :term:`metadata` parameters that should be transformed by the pipeline before passing it to the step consuming it. This enables transforming some input arguments to ``fit`` (other than ``X``) to be transformed by the steps of the pipeline up to the step which requires them. Requirement is defined via :ref:`metadata routing <metadata_routing>`. For instance, this can be used to pass a validation set through the pipeline. You can only set this if metadata routing is enabled, which you can enable using ``sklearn.set_config(enable_metadata_routing=True)``. .. versionadded:: 1.6	None
	memory memory: str or object with the joblib.Memory interface, default=None Used to cache the fitted transformers of the pipeline. The last step will never be cached, even if it is a transformer. By default, no caching is performed. If a string is given, it is the path to the caching directory. Enabling caching triggers a clone of the transformers before fitting. Therefore, the transformer instance given to the pipeline cannot be inspected directly. Use the attribute ``named_steps`` or ``steps`` to inspect estimators within the pipeline. Caching the transformers is advantageous when fitting is time consuming. See :ref:`sphx_glr_auto_examples_neighbors_plot_caching_nearest_neighbors.py` for an example on how to enable caching.	None
	verbose verbose: bool, default=False If True, the time elapsed while fitting each step will be printed as it is completed.	False

Fitted attributes

Name	Type	Value
classes_ classes_: ndarray of shape (n_classes,) The classes labels. Only exist if the last step of the pipeline is a classifier.	ndarray[int64](2,)	[0,1]
feature_names_in_ feature_names_in_: ndarray of shape (`n_features_in_`,) Names of features seen during :term:`fit`. Only defined if the underlying estimator exposes such an attribute when fit. .. versionadded:: 1.0	list	['me...us', 'me...re', 'me...er', 'me...ea', ...]
n_features_in_ n_features_in_: int Number of features seen during :term:`fit`. Only defined if the underlying first estimator in `steps` exposes such an attribute when fit. .. versionadded:: 0.24	int	30

tablevectorizer: TableVectorizer

Parameters

	low_cardinality	OneHotEncoder..._output=False)
	high_cardinality	StringEncoder()
	numeric	PassThrough()
	datetime	DatetimeEncod...ding='spline')
	cardinality_threshold	40
	specific_transformers	()
	drop_null_fraction	1.0
	drop_if_constant	False
	drop_if_unique	False
	datetime_format	None
	null_strings	None
	n_jobs	None

Fitted attributes

Name	Type	Value
all_outputs_	list	['me...us', 'me...re', 'me...er', 'me...ea', ...]
all_processing_steps_	dict	{'ar...or': [DropUninformative(), ToFloat(), PassThrough(), {'area error': ToFloat()}], 'co...or': [DropUninformative(), ToFloat(), PassThrough(), {'compactness...r': ToFloat()}], 'co...or': [DropUninformative(), ToFloat(), PassThrough(), {'concave poi...r': ToFloat()}], 'co...or': [DropUninformative(), ToFloat(), PassThrough(), {'concavity error': ToFloat()}], ...}
column_to_kind_	dict	{'ar...or': 'numeric', 'co...or': 'numeric', 'co...or': 'numeric', 'co...or': 'numeric', ...}
feature_names_in_	list	['me...us', 'me...re', 'me...er', 'me...ea', ...]
input_to_outputs_	dict	{'ar...or': ['ar...or'], 'co...or': ['co...or'], 'co...or': ['co...or'], 'co...or': ['co...or'], ...}
kind_to_columns_	dict	{'da...me': [], 'hi...ty': [], 'lo...ty': [], 'numeric': ['me...us', 'me...re', 'me...er', 'me...ea', ...], ...}
n_features_in_	int	30
output_to_input_	dict	{'ar...or': 'ar...or', 'co...or': 'co...or', 'co...or': 'co...or', 'co...or': 'co...or', ...}
transformers_	dict	{'ar...or': PassThrough(), 'co...or': PassThrough(), 'co...or': PassThrough(), 'co...or': PassThrough(), ...}

numeric

['mean radius', 'mean texture', 'mean perimeter', 'mean area', 'mean smoothness', 'mean compactness', 'mean concavity', 'mean concave points', 'mean symmetry', 'mean fractal dimension', 'radius error', 'texture error', 'perimeter error', 'area error', 'smoothness error', 'compactness error', 'concavity error', 'concave points error', 'symmetry error', 'fractal dimension error', 'worst radius', 'worst texture', 'worst perimeter', 'worst area', 'worst smoothness', 'worst compactness', 'worst concavity', 'worst concave points', 'worst symmetry', 'worst fractal dimension']

PassThrough

Parameters

datetime

DatetimeEncoder

Parameters

	periodic_encoding	'spline'
	resolution	'hour'
	add_weekday	False
	add_total_seconds	True
	add_day_of_year	False

low_cardinality

OneHotEncoder

Parameters

	drop drop: {'first', 'if_binary'} or an array-like of shape (n_features,), default=None Specifies a methodology to use to drop one of the categories per feature. This is useful in situations where perfectly collinear features cause problems, such as when feeding the resulting data into an unregularized linear regression model. However, dropping one category breaks the symmetry of the original representation and can therefore induce a bias in downstream models, for instance for penalized linear classification or regression models. - None : retain all features (the default). - 'first' : drop the first category in each feature. If only one category is present, the feature will be dropped entirely. - 'if_binary' : drop the first category in each feature with two categories. Features with 1 or more than 2 categories are left intact. - array : ``drop[i]`` is the category in feature ``X[:, i]`` that should be dropped. When `max_categories` or `min_frequency` is configured to group infrequent categories, the dropping behavior is handled after the grouping. .. versionadded:: 0.21 The parameter `drop` was added in 0.21. .. versionchanged:: 0.23 The option `drop='if_binary'` was added in 0.23. .. versionchanged:: 1.1 Support for dropping infrequent categories.	'if_binary'
	sparse_output sparse_output: bool, default=True When ``True``, it returns a SciPy sparse matrix/array in "Compressed Sparse Row" (CSR) format. .. versionadded:: 1.2 `sparse` was renamed to `sparse_output`	False
	dtype dtype: number type, default=np.float64 Desired dtype of output.	'float32'
	handle_unknown handle_unknown: {'error', 'ignore', 'infrequent_if_exist', 'warn'}, default='error' Specifies the way unknown categories are handled during :meth:`transform`. - 'error' : Raise an error if an unknown category is present during transform. - 'ignore' : When an unknown category is encountered during transform, the resulting one-hot encoded columns for this feature will be all zeros. In the inverse transform, an unknown category will be denoted as None. - 'infrequent_if_exist' : When an unknown category is encountered during transform, the resulting one-hot encoded columns for this feature will map to the infrequent category if it exists. The infrequent category will be mapped to the last position in the encoding. During inverse transform, an unknown category will be mapped to the category denoted `'infrequent'` if it exists. If the `'infrequent'` category does not exist, then :meth:`transform` and :meth:`inverse_transform` will handle an unknown category as with `handle_unknown='ignore'`. Infrequent categories exist based on `min_frequency` and `max_categories`. Read more in the :ref:`User Guide <encoder_infrequent_categories>`. - 'warn' : When an unknown category is encountered during transform a warning is issued, and the encoding then proceeds as described for `handle_unknown="infrequent_if_exist"`. .. versionchanged:: 1.1 `'infrequent_if_exist'` was added to automatically handle unknown categories and infrequent categories. .. versionadded:: 1.6 The option `"warn"` was added in 1.6.	'ignore'
	categories categories: 'auto' or a list of array-like, default='auto' Categories (unique values) per feature: - 'auto' : Determine categories automatically from the training data. - list : ``categories[i]`` holds the categories expected in the ith column. The passed categories should not mix strings and numeric values within a single feature, and should be sorted in case of numeric values. The used categories can be found in the ``categories_`` attribute. .. versionadded:: 0.20	'auto'
	min_frequency min_frequency: int or float, default=None Specifies the minimum frequency below which a category will be considered infrequent. - If `int`, categories with a smaller cardinality will be considered infrequent. - If `float`, categories with a smaller cardinality than `min_frequency * n_samples` will be considered infrequent. .. versionadded:: 1.1 Read more in the :ref:`User Guide <encoder_infrequent_categories>`.	None
	max_categories max_categories: int, default=None Specifies an upper limit to the number of output features for each input feature when considering infrequent categories. If there are infrequent categories, `max_categories` includes the category representing the infrequent categories along with the frequent categories. If `None`, there is no limit to the number of output features. .. versionadded:: 1.1 Read more in the :ref:`User Guide <encoder_infrequent_categories>`.	None
	feature_name_combiner feature_name_combiner: "concat" or callable, default="concat" Callable with signature `def callable(input_feature, category)` that returns a string. This is used to create feature names to be returned by :meth:`get_feature_names_out`. `"concat"` concatenates encoded feature name and category with `feature + "_" + str(category)`.E.g. feature X with values 1, 6, 7 create feature names `X_1, X_6, X_7`. .. versionadded:: 1.3	'concat'

high_cardinality

StringEncoder

Parameters

	n_components	30
	vectorizer	'tfidf'
	ngram_range	(3, ...)
	analyzer	'char_wb'
	stop_words	None
	random_state	None
	vocabulary	None

30 features

mean radius

mean texture

mean perimeter

mean area

mean smoothness

mean compactness

mean concavity

mean concave points

mean symmetry

mean fractal dimension

radius error

texture error

perimeter error

area error

smoothness error

compactness error

concavity error

concave points error

symmetry error

fractal dimension error

worst radius

worst texture

worst perimeter

worst area

worst smoothness

worst compactness

worst concavity

worst concave points

worst symmetry

worst fractal dimension

SimpleImputer

Parameters

	add_indicator add_indicator: bool, default=False If True, a :class:`MissingIndicator` transform will stack onto output of the imputer's transform. This allows a predictive estimator to account for missingness despite imputation. If a feature has no missing values at fit/train time, the feature won't appear on the missing indicator even if there are missing values at transform/test time.	True
	missing_values missing_values: int, float, str, np.nan, None or pandas.NA, default=np.nan The placeholder for the missing values. All occurrences of `missing_values` will be imputed. For pandas' dataframes with nullable integer dtypes with missing values, `missing_values` can be set to either `np.nan` or `pd.NA`.	nan
	strategy strategy: str or Callable, default='mean' The imputation strategy. - If "mean", then replace missing values using the mean along each column. Can only be used with numeric data. - If "median", then replace missing values using the median along each column. Can only be used with numeric data. - If "most_frequent", then replace missing using the most frequent value along each column. Can be used with strings or numeric data. If there is more than one such value, only the smallest is returned. - If "constant", then replace missing values with fill_value. Can be used with strings or numeric data. - If an instance of Callable, then replace missing values using the scalar statistic returned by running the callable over a dense 1d array containing non-missing values of each column. .. versionadded:: 0.20 strategy="constant" for fixed value imputation. .. versionadded:: 1.5 strategy=callable for custom value imputation.	'mean'
	fill_value fill_value: str or numerical value, default=None When strategy == "constant", `fill_value` is used to replace all occurrences of missing_values. For string or object data types, `fill_value` must be a string. If `None`, `fill_value` will be 0 when imputing numerical data and "missing_value" for strings or object data types.	None
	copy copy: bool, default=True If True, a copy of X will be created. If False, imputation will be done in-place whenever possible. Note that, in the following cases, a new copy will always be made, even if `copy=False`: - If `X` is not an array of floating values; - If `X` is encoded as a CSR matrix; - If `add_indicator=True`.	True
	keep_empty_features keep_empty_features: bool, default=False If True, features that consist exclusively of missing values when `fit` is called are returned in results when `transform` is called. The imputed value is always `0` except when `strategy="constant"` in which case `fill_value` will be used instead. .. versionadded:: 1.2	False

Fitted attributes

Name	Type	Value
feature_names_in_ feature_names_in_: ndarray of shape (`n_features_in_`,) Names of features seen during :term:`fit`. Defined only when `X` has feature names that are all strings. .. versionadded:: 1.0	ndarray[object](30,)	['mean radius','mean texture','mean perimeter',...,'worst concave points', 'worst symmetry','worst fractal dimension']
indicator_ indicator_: :class:`~sklearn.impute.MissingIndicator` Indicator used to add binary indicators for missing values. `None` if `add_indicator=False`.	MissingIndicator	MissingIndica..._on_new=False)
n_features_in_ n_features_in_: int Number of features seen during :term:`fit`. .. versionadded:: 0.24	int	30
statistics_ statistics_: array of shape (n_features,) The imputation fill value for each feature. Computing statistics can result in `np.nan` values. During :meth:`transform`, features corresponding to `np.nan` statistics will be discarded.	ndarray[float64](30,)	[14.11,19.15,91.82,..., 0.11, 0.29, 0.08]

30 features

mean radius

mean texture

mean perimeter

mean area

mean smoothness

mean compactness

mean concavity

mean concave points

mean symmetry

mean fractal dimension

radius error

texture error

perimeter error

area error

smoothness error

compactness error

concavity error

concave points error

symmetry error

fractal dimension error

worst radius

worst texture

worst perimeter

worst area

worst smoothness

worst compactness

worst concavity

worst concave points

worst symmetry

worst fractal dimension

SquashingScaler

Parameters

	max_absolute_value	5
	quantile_range	(25.0, ...)

Fitted attributes

Name	Type	Value
minmax_cols_	ndarray[bool](30,)	[False,False,False,...,False,False,False]
minmax_scaler_	NoneType	None
n_features_in_	int	30
robust_cols_	ndarray[bool](30,)	[ True, True, True,..., True, True, True]
robust_scaler_	RobustScaler	RobustScaler()
zero_cols_	ndarray[bool](30,)	[False,False,False,...,False,False,False]

30 features

x10

x11

x12

x13

x14

x15

x16

x17

x18

x19

x20

x21

x22

x23

x24

x25

x26

x27

x28

x29

LogisticRegression

Parameters

	max_iter max_iter: int, default=100 Maximum number of iterations taken for the solvers to converge.	1000
	penalty penalty: {'l1', 'l2', 'elasticnet', None}, default='l2' Specify the norm of the penalty: - `None`: no penalty is added; - `'l2'`: add an L2 penalty term and it is the default choice; - `'l1'`: add an L1 penalty term; - `'elasticnet'`: both L1 and L2 penalty terms are added. .. warning:: Some penalties may not work with some solvers. See the parameter `solver` below, to know the compatibility between the penalty and solver. .. versionadded:: 0.19 l1 penalty with SAGA solver (allowing 'multinomial' + L1) .. deprecated:: 1.8 `penalty` was deprecated in version 1.8 and will be removed in 1.10. Use `l1_ratio` and `C` instead. `l1_ratio=0` for `penalty='l2'`, `l1_ratio=1` for `penalty='l1'`, `l1_ratio` set to any float between 0 and 1 for `penalty='elasticnet'`, and `C=np.inf` for `penalty=None`.	'deprecated'
	C C: float, default=1.0 Inverse of regularization strength; must be a positive float. Like in support vector machines, smaller values specify stronger regularization. `C=np.inf` results in unpenalized logistic regression. For a visual example on the effect of tuning the `C` parameter with an L1 penalty, see: :ref:`sphx_glr_auto_examples_linear_model_plot_logistic_path.py`.	np.float64(1.0)
	l1_ratio l1_ratio: float, default=0.0 The Elastic-Net mixing parameter, with `0 <= l1_ratio <= 1`. Setting `l1_ratio=1` gives a pure L1-penalty, setting `l1_ratio=0` a pure L2-penalty. Any value between 0 and 1 gives an Elastic-Net penalty of the form `l1_ratio * L1 + (1 - l1_ratio) * L2`. .. warning:: Certain values of `l1_ratio`, i.e. some penalties, may not work with some solvers. See the parameter `solver` below, to know the compatibility between the penalty and solver. .. versionchanged:: 1.8 Default value changed from None to 0.0. .. deprecated:: 1.8 `None` is deprecated and will be removed in version 1.10. Always use `l1_ratio` to specify the penalty type.	0.0
	dual dual: bool, default=False Dual (constrained) or primal (regularized, see also :ref:`this equation <regularized-logistic-loss>`) formulation. Dual formulation is only implemented for l2 penalty with liblinear solver. Prefer `dual=False` when n_samples > n_features.	False
	tol tol: float, default=1e-4 Tolerance for stopping criteria.	0.0001
	fit_intercept fit_intercept: bool, default=True Specifies if a constant (a.k.a. bias or intercept) should be added to the decision function.	True
	intercept_scaling intercept_scaling: float, default=1 Useful only when the solver `liblinear` is used and `self.fit_intercept` is set to `True`. In this case, `x` becomes `[x, self.intercept_scaling]`, i.e. a "synthetic" feature with constant value equal to `intercept_scaling` is appended to the instance vector. The intercept becomes ``intercept_scaling * synthetic_feature_weight``. .. note:: The synthetic feature weight is subject to L1 or L2 regularization as all other features. To lessen the effect of regularization on synthetic feature weight (and therefore on the intercept) `intercept_scaling` has to be increased.	1
	class_weight class_weight: dict or 'balanced', default=None Weights associated with classes in the form ``{class_label: weight}``. If not given, all classes are supposed to have weight one. The "balanced" mode uses the values of y to automatically adjust weights inversely proportional to class frequencies in the input data as ``n_samples / (n_classes * np.bincount(y))``. Note that these weights will be multiplied with sample_weight (passed through the fit method) if sample_weight is specified. .. versionadded:: 0.17 class_weight='balanced'	None
	random_state random_state: int, RandomState instance, default=None Used when ``solver`` == 'sag', 'saga' or 'liblinear' to shuffle the data. See :term:`Glossary <random_state>` for details.	None
	solver solver: {'lbfgs', 'liblinear', 'newton-cg', 'newton-cholesky', 'sag', 'saga'}, default='lbfgs' Algorithm to use in the optimization problem. Default is 'lbfgs'. To choose a solver, you might want to consider the following aspects: - 'lbfgs' is a good default solver because it works reasonably well for a wide class of problems. - For :term:`multiclass` problems (`n_classes >= 3`), all solvers except 'liblinear' minimize the full multinomial loss, 'liblinear' will raise an error. - 'newton-cholesky' is a good choice for `n_samples` >> `n_features * n_classes`, especially with one-hot encoded categorical features with rare categories. Be aware that the memory usage of this solver has a quadratic dependency on `n_features * n_classes` because it explicitly computes the full Hessian matrix. - For small datasets, 'liblinear' is a good choice, whereas 'sag' and 'saga' are faster for large ones; - 'liblinear' can only handle binary classification by default. To apply a one-versus-rest scheme for the multiclass setting one can wrap it with the :class:`~sklearn.multiclass.OneVsRestClassifier`. .. warning:: The choice of the algorithm depends on the penalty chosen (`l1_ratio=0` for L2-penalty, `l1_ratio=1` for L1-penalty and `0 < l1_ratio < 1` for Elastic-Net) and on (multinomial) multiclass support: ================= ======================== ====================== solver l1_ratio multinomial multiclass ================= ======================== ====================== 'lbfgs' l1_ratio=0 yes 'liblinear' l1_ratio=1 or l1_ratio=0 no 'newton-cg' l1_ratio=0 yes 'newton-cholesky' l1_ratio=0 yes 'sag' l1_ratio=0 yes 'saga' 0<=l1_ratio<=1 yes ================= ======================== ====================== .. note:: 'sag' and 'saga' fast convergence is only guaranteed on features with approximately the same scale. You can preprocess the data with a scaler from :mod:`sklearn.preprocessing`. .. seealso:: Refer to the :ref:`User Guide <Logistic_regression>` for more information regarding :class:`LogisticRegression` and more specifically the :ref:`Table <logistic_regression_solvers>` summarizing solver/penalty supports. .. versionadded:: 0.17 Stochastic Average Gradient (SAG) descent solver. Multinomial support in version 0.18. .. versionadded:: 0.19 SAGA solver. .. versionchanged:: 0.22 The default solver changed from 'liblinear' to 'lbfgs' in 0.22. .. versionadded:: 1.2 newton-cholesky solver. Multinomial support in version 1.6.	'lbfgs'
	verbose verbose: int, default=0 For the liblinear and lbfgs solvers set verbose to any positive number for verbosity.	0
	warm_start warm_start: bool, default=False When set to True, reuse the solution of the previous call to fit as initialization, otherwise, just erase the previous solution. Useless for liblinear solver. See :term:`the Glossary <warm_start>`. .. versionadded:: 0.17 warm_start to support lbfgs, newton-cg, sag, saga solvers.	False
	n_jobs n_jobs: int, default=None Does not have any effect. .. deprecated:: 1.8 `n_jobs` is deprecated in version 1.8 and will be removed in 1.10.	None

Fitted attributes

Name	Type	Value
classes_ classes_: ndarray of shape (n_classes, ) A list of class labels known to the classifier.	ndarray[int64](2,)	[0,1]
coef_ coef_: ndarray or CSR matrix of shape (1, n_features) or (n_classes, n_features) Coefficients of the features in the decision function. `coef_` is of shape (1, n_features) when the given problem is binary. By default, it will be created as a dense array, but can be turned to sparse (CSR format) through :meth:`sparsify` (which can be beneficial under L1 regularization when many coefficients are zero), and back to dense through :meth:`densify`.	ndarray[float32](1, 30)	[[-0.35,-0.78,-0.36,...,-1.05,-0.67,-0.75]]
intercept_ intercept_: ndarray of shape (1,) or (n_classes,) Intercept (a.k.a. bias) added to the decision function. If `fit_intercept` is set to False, the intercept is set to zero. `intercept_` is of shape (1,) when the given problem is binary.	ndarray[float32](1,)	[3.05]
n_features_in_ n_features_in_: int Number of features seen during :term:`fit`. .. versionadded:: 0.24	int	30
n_iter_ n_iter_: ndarray of shape (1, ) Actual number of iterations for all classes. .. versionchanged:: 0.20 In SciPy <= 1.0.0 the number of lbfgs iterations may exceed ``max_iter``. ``n_iter_`` will now report at most ``max_iter``.	ndarray[int32](1,)	[17]

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1 issue(s), 1 tip(s), 4 passed, 5 not applicable, 0 ignored.

Pipeline(steps=[('tablevectorizer',
                     TableVectorizer(datetime=DatetimeEncoder(periodic_encoding='spline'))),
                    ('simpleimputer', SimpleImputer(add_indicator=True)),
                    ('squashingscaler', SquashingScaler(max_absolute_value=5)),
                    ('logisticregression',
                     LogisticRegression(C=np.float64(2.9286445646252375),
                                        max_iter=1000))])

Pipeline

Parameters

	steps steps: list of tuples List of (name of step, estimator) tuples that are to be chained in sequential order. To be compatible with the scikit-learn API, all steps must define `fit`. All non-last steps must also define `transform`. See :ref:`Combining Estimators <combining_estimators>` for more details.	[('tablevectorizer', ...), ('simpleimputer', ...), ...]
	transform_input transform_input: list of str, default=None The names of the :term:`metadata` parameters that should be transformed by the pipeline before passing it to the step consuming it. This enables transforming some input arguments to ``fit`` (other than ``X``) to be transformed by the steps of the pipeline up to the step which requires them. Requirement is defined via :ref:`metadata routing <metadata_routing>`. For instance, this can be used to pass a validation set through the pipeline. You can only set this if metadata routing is enabled, which you can enable using ``sklearn.set_config(enable_metadata_routing=True)``. .. versionadded:: 1.6	None
	memory memory: str or object with the joblib.Memory interface, default=None Used to cache the fitted transformers of the pipeline. The last step will never be cached, even if it is a transformer. By default, no caching is performed. If a string is given, it is the path to the caching directory. Enabling caching triggers a clone of the transformers before fitting. Therefore, the transformer instance given to the pipeline cannot be inspected directly. Use the attribute ``named_steps`` or ``steps`` to inspect estimators within the pipeline. Caching the transformers is advantageous when fitting is time consuming. See :ref:`sphx_glr_auto_examples_neighbors_plot_caching_nearest_neighbors.py` for an example on how to enable caching.	None
	verbose verbose: bool, default=False If True, the time elapsed while fitting each step will be printed as it is completed.	False

Fitted attributes

Name	Type	Value
classes_ classes_: ndarray of shape (n_classes,) The classes labels. Only exist if the last step of the pipeline is a classifier.	ndarray[int64](2,)	[0,1]
feature_names_in_ feature_names_in_: ndarray of shape (`n_features_in_`,) Names of features seen during :term:`fit`. Only defined if the underlying estimator exposes such an attribute when fit. .. versionadded:: 1.0	list	['me...us', 'me...re', 'me...er', 'me...ea', ...]
n_features_in_ n_features_in_: int Number of features seen during :term:`fit`. Only defined if the underlying first estimator in `steps` exposes such an attribute when fit. .. versionadded:: 0.24	int	30

tablevectorizer: TableVectorizer

Parameters

	low_cardinality	OneHotEncoder..._output=False)
	high_cardinality	StringEncoder()
	numeric	PassThrough()
	datetime	DatetimeEncod...ding='spline')
	cardinality_threshold	40
	specific_transformers	()
	drop_null_fraction	1.0
	drop_if_constant	False
	drop_if_unique	False
	datetime_format	None
	null_strings	None
	n_jobs	None

Fitted attributes

Name	Type	Value
all_outputs_	list	['me...us', 'me...re', 'me...er', 'me...ea', ...]
all_processing_steps_	dict	{'ar...or': [DropUninformative(), ToFloat(), PassThrough(), {'area error': ToFloat()}], 'co...or': [DropUninformative(), ToFloat(), PassThrough(), {'compactness...r': ToFloat()}], 'co...or': [DropUninformative(), ToFloat(), PassThrough(), {'concave poi...r': ToFloat()}], 'co...or': [DropUninformative(), ToFloat(), PassThrough(), {'concavity error': ToFloat()}], ...}
column_to_kind_	dict	{'ar...or': 'numeric', 'co...or': 'numeric', 'co...or': 'numeric', 'co...or': 'numeric', ...}
feature_names_in_	list	['me...us', 'me...re', 'me...er', 'me...ea', ...]
input_to_outputs_	dict	{'ar...or': ['ar...or'], 'co...or': ['co...or'], 'co...or': ['co...or'], 'co...or': ['co...or'], ...}
kind_to_columns_	dict	{'da...me': [], 'hi...ty': [], 'lo...ty': [], 'numeric': ['me...us', 'me...re', 'me...er', 'me...ea', ...], ...}
n_features_in_	int	30
output_to_input_	dict	{'ar...or': 'ar...or', 'co...or': 'co...or', 'co...or': 'co...or', 'co...or': 'co...or', ...}
transformers_	dict	{'ar...or': PassThrough(), 'co...or': PassThrough(), 'co...or': PassThrough(), 'co...or': PassThrough(), ...}

numeric

['mean radius', 'mean texture', 'mean perimeter', 'mean area', 'mean smoothness', 'mean compactness', 'mean concavity', 'mean concave points', 'mean symmetry', 'mean fractal dimension', 'radius error', 'texture error', 'perimeter error', 'area error', 'smoothness error', 'compactness error', 'concavity error', 'concave points error', 'symmetry error', 'fractal dimension error', 'worst radius', 'worst texture', 'worst perimeter', 'worst area', 'worst smoothness', 'worst compactness', 'worst concavity', 'worst concave points', 'worst symmetry', 'worst fractal dimension']

PassThrough

Parameters

datetime

DatetimeEncoder

Parameters

	periodic_encoding	'spline'
	resolution	'hour'
	add_weekday	False
	add_total_seconds	True
	add_day_of_year	False

low_cardinality

OneHotEncoder

Parameters

	drop drop: {'first', 'if_binary'} or an array-like of shape (n_features,), default=None Specifies a methodology to use to drop one of the categories per feature. This is useful in situations where perfectly collinear features cause problems, such as when feeding the resulting data into an unregularized linear regression model. However, dropping one category breaks the symmetry of the original representation and can therefore induce a bias in downstream models, for instance for penalized linear classification or regression models. - None : retain all features (the default). - 'first' : drop the first category in each feature. If only one category is present, the feature will be dropped entirely. - 'if_binary' : drop the first category in each feature with two categories. Features with 1 or more than 2 categories are left intact. - array : ``drop[i]`` is the category in feature ``X[:, i]`` that should be dropped. When `max_categories` or `min_frequency` is configured to group infrequent categories, the dropping behavior is handled after the grouping. .. versionadded:: 0.21 The parameter `drop` was added in 0.21. .. versionchanged:: 0.23 The option `drop='if_binary'` was added in 0.23. .. versionchanged:: 1.1 Support for dropping infrequent categories.	'if_binary'
	sparse_output sparse_output: bool, default=True When ``True``, it returns a SciPy sparse matrix/array in "Compressed Sparse Row" (CSR) format. .. versionadded:: 1.2 `sparse` was renamed to `sparse_output`	False
	dtype dtype: number type, default=np.float64 Desired dtype of output.	'float32'
	handle_unknown handle_unknown: {'error', 'ignore', 'infrequent_if_exist', 'warn'}, default='error' Specifies the way unknown categories are handled during :meth:`transform`. - 'error' : Raise an error if an unknown category is present during transform. - 'ignore' : When an unknown category is encountered during transform, the resulting one-hot encoded columns for this feature will be all zeros. In the inverse transform, an unknown category will be denoted as None. - 'infrequent_if_exist' : When an unknown category is encountered during transform, the resulting one-hot encoded columns for this feature will map to the infrequent category if it exists. The infrequent category will be mapped to the last position in the encoding. During inverse transform, an unknown category will be mapped to the category denoted `'infrequent'` if it exists. If the `'infrequent'` category does not exist, then :meth:`transform` and :meth:`inverse_transform` will handle an unknown category as with `handle_unknown='ignore'`. Infrequent categories exist based on `min_frequency` and `max_categories`. Read more in the :ref:`User Guide <encoder_infrequent_categories>`. - 'warn' : When an unknown category is encountered during transform a warning is issued, and the encoding then proceeds as described for `handle_unknown="infrequent_if_exist"`. .. versionchanged:: 1.1 `'infrequent_if_exist'` was added to automatically handle unknown categories and infrequent categories. .. versionadded:: 1.6 The option `"warn"` was added in 1.6.	'ignore'
	categories categories: 'auto' or a list of array-like, default='auto' Categories (unique values) per feature: - 'auto' : Determine categories automatically from the training data. - list : ``categories[i]`` holds the categories expected in the ith column. The passed categories should not mix strings and numeric values within a single feature, and should be sorted in case of numeric values. The used categories can be found in the ``categories_`` attribute. .. versionadded:: 0.20	'auto'
	min_frequency min_frequency: int or float, default=None Specifies the minimum frequency below which a category will be considered infrequent. - If `int`, categories with a smaller cardinality will be considered infrequent. - If `float`, categories with a smaller cardinality than `min_frequency * n_samples` will be considered infrequent. .. versionadded:: 1.1 Read more in the :ref:`User Guide <encoder_infrequent_categories>`.	None
	max_categories max_categories: int, default=None Specifies an upper limit to the number of output features for each input feature when considering infrequent categories. If there are infrequent categories, `max_categories` includes the category representing the infrequent categories along with the frequent categories. If `None`, there is no limit to the number of output features. .. versionadded:: 1.1 Read more in the :ref:`User Guide <encoder_infrequent_categories>`.	None
	feature_name_combiner feature_name_combiner: "concat" or callable, default="concat" Callable with signature `def callable(input_feature, category)` that returns a string. This is used to create feature names to be returned by :meth:`get_feature_names_out`. `"concat"` concatenates encoded feature name and category with `feature + "_" + str(category)`.E.g. feature X with values 1, 6, 7 create feature names `X_1, X_6, X_7`. .. versionadded:: 1.3	'concat'

high_cardinality

StringEncoder

Parameters

	n_components	30
	vectorizer	'tfidf'
	ngram_range	(3, ...)
	analyzer	'char_wb'
	stop_words	None
	random_state	None
	vocabulary	None

30 features

mean radius

mean texture

mean perimeter

mean area

mean smoothness

mean compactness

mean concavity

mean concave points

mean symmetry

mean fractal dimension

radius error

texture error

perimeter error

area error

smoothness error

compactness error

concavity error

concave points error

symmetry error

fractal dimension error

worst radius

worst texture

worst perimeter

worst area

worst smoothness

worst compactness

worst concavity

worst concave points

worst symmetry

worst fractal dimension

SimpleImputer

Parameters

	add_indicator add_indicator: bool, default=False If True, a :class:`MissingIndicator` transform will stack onto output of the imputer's transform. This allows a predictive estimator to account for missingness despite imputation. If a feature has no missing values at fit/train time, the feature won't appear on the missing indicator even if there are missing values at transform/test time.	True
	missing_values missing_values: int, float, str, np.nan, None or pandas.NA, default=np.nan The placeholder for the missing values. All occurrences of `missing_values` will be imputed. For pandas' dataframes with nullable integer dtypes with missing values, `missing_values` can be set to either `np.nan` or `pd.NA`.	nan
	strategy strategy: str or Callable, default='mean' The imputation strategy. - If "mean", then replace missing values using the mean along each column. Can only be used with numeric data. - If "median", then replace missing values using the median along each column. Can only be used with numeric data. - If "most_frequent", then replace missing using the most frequent value along each column. Can be used with strings or numeric data. If there is more than one such value, only the smallest is returned. - If "constant", then replace missing values with fill_value. Can be used with strings or numeric data. - If an instance of Callable, then replace missing values using the scalar statistic returned by running the callable over a dense 1d array containing non-missing values of each column. .. versionadded:: 0.20 strategy="constant" for fixed value imputation. .. versionadded:: 1.5 strategy=callable for custom value imputation.	'mean'
	fill_value fill_value: str or numerical value, default=None When strategy == "constant", `fill_value` is used to replace all occurrences of missing_values. For string or object data types, `fill_value` must be a string. If `None`, `fill_value` will be 0 when imputing numerical data and "missing_value" for strings or object data types.	None
	copy copy: bool, default=True If True, a copy of X will be created. If False, imputation will be done in-place whenever possible. Note that, in the following cases, a new copy will always be made, even if `copy=False`: - If `X` is not an array of floating values; - If `X` is encoded as a CSR matrix; - If `add_indicator=True`.	True
	keep_empty_features keep_empty_features: bool, default=False If True, features that consist exclusively of missing values when `fit` is called are returned in results when `transform` is called. The imputed value is always `0` except when `strategy="constant"` in which case `fill_value` will be used instead. .. versionadded:: 1.2	False

Fitted attributes

Name	Type	Value
feature_names_in_ feature_names_in_: ndarray of shape (`n_features_in_`,) Names of features seen during :term:`fit`. Defined only when `X` has feature names that are all strings. .. versionadded:: 1.0	ndarray[object](30,)	['mean radius','mean texture','mean perimeter',...,'worst concave points', 'worst symmetry','worst fractal dimension']
indicator_ indicator_: :class:`~sklearn.impute.MissingIndicator` Indicator used to add binary indicators for missing values. `None` if `add_indicator=False`.	MissingIndicator	MissingIndica..._on_new=False)
n_features_in_ n_features_in_: int Number of features seen during :term:`fit`. .. versionadded:: 0.24	int	30
statistics_ statistics_: array of shape (n_features,) The imputation fill value for each feature. Computing statistics can result in `np.nan` values. During :meth:`transform`, features corresponding to `np.nan` statistics will be discarded.	ndarray[float64](30,)	[14.11,19.15,91.82,..., 0.11, 0.29, 0.08]

30 features

mean radius

mean texture

mean perimeter

mean area

mean smoothness

mean compactness

mean concavity

mean concave points

mean symmetry

mean fractal dimension

radius error

texture error

perimeter error

area error

smoothness error

compactness error

concavity error

concave points error

symmetry error

fractal dimension error

worst radius

worst texture

worst perimeter

worst area

worst smoothness

worst compactness

worst concavity

worst concave points

worst symmetry

worst fractal dimension

SquashingScaler

Parameters

	max_absolute_value	5
	quantile_range	(25.0, ...)

Fitted attributes

Name	Type	Value
minmax_cols_	ndarray[bool](30,)	[False,False,False,...,False,False,False]
minmax_scaler_	NoneType	None
n_features_in_	int	30
robust_cols_	ndarray[bool](30,)	[ True, True, True,..., True, True, True]
robust_scaler_	RobustScaler	RobustScaler()
zero_cols_	ndarray[bool](30,)	[False,False,False,...,False,False,False]

30 features

x10

x11

x12

x13

x14

x15

x16

x17

x18

x19

x20

x21

x22

x23

x24

x25

x26

x27

x28

x29

LogisticRegression