Math.TotalVariance Function

Returns the statistical variance from an array of values.

Pascal

function TotalVariance(const Data: array of Double): Extended;

C++

Extended TotalVariance(const array of Double Data);

TotalVariance returns the sum of the squares of the difference between each Data value and the mean of the data values.

Total Variance: SUM(i=1,N)[(X(i) - Mean)**2]