System.Math.Variance

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Object Pascal

function Variance(const Data: array of Single): Single;
function Variance(const Data: array of Double): Double;
function Variance(const Data: array of Extended): Extended;

C++

extern DELPHI_PACKAGE float __fastcall Variance(float const *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 statistical sample variance from an array of data.

Variance calculates the sample variance of all values in the Data array parameter, using the n-1 method (unbiased). In C++, Data_Size specifies the index of the last value in Data (on less than the number of data values).

See Also