StdDev

int StdDev (double inputArray[], int numberOfElements, double *mean, double *standardDeviation);

Purpose

Calculates the standard deviation and the mean, or average, values of the input array. StdDev uses the following formulas to find the mean and the standard deviation:



Parameters

Input
Name Type Description
inputArray double-precision array Input array from which the mean and the standard deviation are determined.
numberOfElements integer Number of elements used to find the mean and the standard deviation.
Output
Name Type Description
mean double-precision Mean value of the input array.
standardDeviation double-precision Standard deviation of the input array.

Return Value

Name Type Description
status AnalysisLibErrType A value that specifies the type of error that occurred. Refer to analysis.h for definitions of these constants.