NAME

kdata_pmfstddev — compute probability mass function standard deviation of data

LIBRARY

library “libkplot”

SYNOPSIS

#include <cairo.h>
#include <kplot.h>

double
kdata_pmfstddev(const struct kdata *data);

DESCRIPTION

The kdata_pmfstddev function compute the standard deviation (i.e., the square root of kdata_pmfvar(3)) of its data as if it were a probability mass function.

RETURN VALUES

If the data source has zero entries or the sum of the y values is 0.0, kdata_pmfstddev returns 0.0. Otherwise, it returns the standard deviation.

SEE ALSO

kdata_pmfmean(3), kdata_pmfvar(3), kplot(3)