def data_response(self):
        """
        returns the 1d array of the data element that is fitted for (including masking)

        :return: 1d numpy array
        """
        d = self.ImageNumerics.image2array(self.Data.data * self.ImageNumerics.mask)
        return d
returns the 1d array of the data element that is fitted for (including masking)

        :return: 1d numpy array