IsDichotomousColumn

Declaration:

TDataTable.IsDichotomousColumn (ColIx: longint): boolean;

The function IsDichotomousColumn checks whether the values in the column ColIx are dichotomous or not. The valid range of the parameter ColIx is from 1 to NrOfColumns. If the column contains only two different values the function returns TRUE. Please note that in the case of a constant value in all cells of the column ColIx the function returns a FALSE value. The same is true if ColIx contains an invalid index.

Hint:

This function works independent of the level of measurement assigned to the column.