BaseDiff

class lightautoml.transformers.datetime.BaseDiff(base_names, diff_names, basic_interval='D')

Bases: lightautoml.transformers.base.LAMLTransformer

Basic conversion strategy, used in selection one-to-one transformers. Datetime converted to difference with basic_date.

property features

List of features.

Return type

List[str]

__init__(base_names, diff_names, basic_interval='D')

Parameters

• base_names (Sequence[str]) – Base date names.

• diff_names (Sequence[str]) – Difference date names.

• basic_interval (Optional[str]) – Time unit.

fit(dataset)

Fit transformer and return it’s instance.

Parameters

dataset (LAMLDataset) – Dataset to fit on.

Return type

LAMLTransformer

Returns

self.

transform(dataset)

Transform dates to numeric differences with base date.

Parameters

dataset (PandasDataset) – Numpy or Pandas dataset with datetime columns.

Return type

NumpyDataset

Returns

NumpyDataset of numeric features.