ColumnwiseUnion

class lightautoml.transformers.base.ColumnwiseUnion(transformer, n_jobs=1)[source]

Bases: UnionTransformer

Apply 1 columns transformer to all columns.

Example: encode all categories with single category encoders.

Parameters:
  • transformer (LAMLTransformer) – Dataset - base transformer.

  • n_jobs (int) – Number of threads.

fit(dataset)[source]

Create transformer list and then fit.

Parameters:

dataset (LAMLDataset) – Dataset with input features.

Returns:

self.

fit_transform(dataset)[source]

Create transformer list and then fit and transform.

Parameters:

dataset (LAMLDataset) – Dataset with input features.

Return type:

LAMLDataset

Returns:

Dataset with new features.