(self, with_state=False, start=None)
return self._accumulate(aggregations.GroupbyMean, with_state=with_state, start=start)
Groupby-mean

        Parameters
        ----------
        start: None or resulting Python object type from the operation
            Accepts a valid start state.
Groupby-mean
Groupby - mean
def mean(self, with_state=False, start=None):
        """ Groupby-mean

        Parameters
        ----------
        start: None or resulting Python object type from the operation
            Accepts a valid start state.
        """
        return self._accumulate(aggregations.GroupbyMean, with_state=with_state, start=start)
def mean ( self , with_state = False , start = None ) : return self . _accumulate ( aggregations . GroupbyMean , with_state = with_state , start = start )