stddev Tcl Command

## NAME

stddev - compute the standard deviation

## SYNOPSIS

**::dmh::stddev ***number_list*

## DESCRIPTION

This command is used to compute the standard deviation of a list of numeric values. If there are fewer than two values in the input list, an empty string is returned. The result is formatted as a floating point number. The global variable, **tcl_precision**, discussed under tclvars, sets the precision of the result.

## AUTHOR

Ed Hume, Hume Integration Software

## SEE ALSO

mean, range

## KEYWORDS

standard deviation, statistics