(self, start=None)
return self._accumulate(aggregations.GroupbyCount, start=start)
Groupby-count

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

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