TTMSFNCCustomDataGrid.ColumnStandardDeviation Method
Returns the standard deviation of the numeric values in a column.
API unit family: TMSFNCDataGrid
Declaring type: TTMSFNCCustomDataGrid
Syntax
function ColumnStandardDeviation(AColumn: Integer; AFromRow: Integer = -1; AToRow: Integer = -1): Double;
double __fastcall ColumnStandardDeviation(int AColumn, int AFromRow = 0xffffffff, int AToRow = 0xffffffff);
Remarks
The same row selection as ColumnSum applies.
Parameters
| Name | Description |
|---|---|
AColumn |
Zero-based column index. |
AFromRow |
First row to include, or -1 for the whole data range. |
AToRow |
Last row to include, or -1 for the whole data range. |
Returns
The square root of the sum of squared deviations from ColumnAverage divided by the counted cell count plus one.