KDATA_PMFSTDDEV(3)

NAME
kdata_pmfstddev - compute probability mass function standard deviation of data

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)