std

Format: std( list )
std( x1, x2, ... )

Arguments: [num] list Input list (must contain at least two elements)

(num) x1, x2, ... Input values

Returns: (num) The standard deviation of all elements in list if only one argument is supplied or the standard deviation of all arguments if more than one argument is supplied

Description: The N-1 (unbiased) method is used to calculate the standard deviation with the following formula:

Examples: std([1,2,3,4,5]) = 1.581

std(1,2,3,4,5) = 1.581

See Also: variance, correlation, count, sum, prod, avg, max, min, med