System.Math.PopnStdDev
Delphi
function PopnStdDev(const Data: array of Single): Single;
function PopnStdDev(const Data: array of Double): Double;
function PopnStdDev(const Data: array of Extended): Extended;
C++
extern DELPHI_PACKAGE float __fastcall PopnStdDev(const float *Data, const int Data_High)/* overload */;
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| function | public | System.Math.pas System.Math.hpp |
System.Math | System.Math |
Description
Calculates the population standard deviation.
PopnStdDev calculates the population standard deviation (the square root of the population variance) of all values in the Data array parameter. In C++, the Data_Size parameter indicates the index of the last element in Data (one less than the number of data points).
This function is used in some business and financial calculations.