daft.dataframe.dataframe.GroupedDataFrame.mean
daft.dataframe.dataframe.GroupedDataFrame.mean#
- GroupedDataFrame.mean(*cols: Union[daft.expressions.expressions.Expression, str]) daft.dataframe.dataframe.DataFrame[source]#
Performs grouped mean on this GroupedDataFrame.
- Parameters
*cols (Union[str, Expression]) – columns to mean
- Returns
DataFrame with grouped mean.
- Return type