Transformer

ColumnwiseTransformer

Apply a transformer columnwise to multivariate series.

Overview: input multivariate time series and the transformer passed in transformer parameter is applied to specified columns, each column is handled as a univariate series. The resulting transformed data has the same shape as input data.

Schnellstart

python

from sktime.transformations.compose import ColumnwiseTransformer

estimator = ColumnwiseTransformer(transformer, columns=None)

Parameter(2)

transformerEstimator: scikit-learn-like or sktime-like transformer to fit and apply to series.
columnslist of str or None: Names of columns that are supposed to be transformed. If None, all columns are transformed.

Beispiele

>>> from sktime.datasets import load_longley
>>> from sktime.transformations.detrend import Detrender
>>> from sktime.transformations.compose import ColumnwiseTransformer
>>> _, X = load_longley ()
>>> transformer = ColumnwiseTransformer (Detrender ())
>>> Xt = transformer. fit_transform (X)