(self, len_data, growth_rate)
return int(round(len_data * growth_rate))
Calculate the number of rows to add to or remove from some data.

        Parameters
        ----------
        len_data : int
            The current number of rows in the data table.
        growth_rate : float
            Growth rate as a fraction. Positive for growth, negative
            for removing rows.
Calculate the number of rows to add to or remove from some data.
Calculate the number of rows to add to or remove from some data .
def _calc_nrows(self, len_data, growth_rate):
        """
        Calculate the number of rows to add to or remove from some data.

        Parameters
        ----------
        len_data : int
            The current number of rows in the data table.
        growth_rate : float
            Growth rate as a fraction. Positive for growth, negative
            for removing rows.

        """
        return int(round(len_data * growth_rate))
def _calc_nrows ( self , len_data , growth_rate ) : return int ( round ( len_data * growth_rate ) )