NaNFlags

class lightautoml.transformers.numeric.NaNFlags(nan_rate=0.005)[source]

Bases: LAMLTransformer

Create NaN flags.

Parameters:

nan_rate (float) – Nan rate cutoff.

fit(dataset)[source]

Extract nan flags.

Parameters:

dataset (Union[NumpyDataset, PandasDataset]) – Pandas or Numpy dataset of categorical features.

Returns:

self.

transform(dataset)[source]

Transform - extract null flags.

Parameters:

dataset (Union[NumpyDataset, PandasDataset]) – Pandas or Numpy dataset of categorical features.

Return type:

NumpyDataset

Returns:

Numpy dataset with encoded labels.