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.