def standardize(self):
        """
        Standardize Kriging samples and create regression matrix.

        Returns:
            None
        """
        Kriging.standardize(self)
    def standardize(self):
        """
        Standardize Kriging samples and create regression matrix.

        Returns:
            None
        """
        Kriging.standardize(self)

        # Calculate PLS coeff
        _pls = pls(self.n_princomp)
        if self.standardization is True:
            coeff_pls = _pls.fit(self.KrigInfo["X_norm"].copy(), self.KrigInfo['y'].copy()).x_rotations_
        else:
            coeff_pls = _pls.fit(self.KrigInfo["X"].copy(), self.KrigInfo['y'].copy()).x_rotations_
        self.KrigInfo["plscoeff"] = coeff_pls