UpdateColumnValues#

class polpo.preprocessing.pd.UpdateColumnValues(column_name, func)[source]#

Bases: PreprocessingStep

Update dataframe column values.

Operation is done in place. Use DfCopy if that is not desired.

Parameters:

column_name (str) – Column to be modified
func (callable) – Function to apply to each element.

apply(df)[source]#

Apply step.

Parameters:: df (pandas.DataFrame) – Dataframe.