AddNominalID

Declaration: TDataTable.AddNominalID (Col: integer; MScaleID: string): integer;
The method AddNominalID adds the nominal identifier MScaleID to the list of nominal identifiers of the column Col and returns its ordinal number if the call to AddNominalID was successful, otherwise a zero value is returned.

Please note that AddNominalID automatically sets the measurement scale type of the column Col to stNominal.