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KDATA_PMFVAR(3)		    Library Functions Manual	       KDATA_PMFVAR(3)

NAME
       kdata_pmfvar -- compute probability mass	function variance of data

LIBRARY
       library "libkplot"

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

       double
       kdata_pmfmean(const struct kdata	*data);

DESCRIPTION
       The  kdata_pmfmean  function  compute the variance 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_pmfmean returns 0.0.  Otherwise, it returns the variance.

SEE ALSO
       kdata_pmfmean(3), kdata_pmfstddev(3), kplot(3)

FreeBSD	ports 15.quarterly     January 29, 2015		       KDATA_PMFVAR(3)

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