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KDATA_XSTDDEV(3)	    Library Functions Manual	      KDATA_XSTDDEV(3)

NAME
       kdata_xstddev,  kdata_ystddev  -- compute population standard deviation
       of data

LIBRARY
       library "libkplot"

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

       double
       kdata_xstddev(const struct kdata	*data);

       double
       kdata_ystddev(const struct kdata	*data);

DESCRIPTION
       The kdata_xstddev and kdata_ystddev functions  compute  the  population
       standard	deviation of the arithmetic mean of data.

RETURN VALUES
       If  the	data  source has zero entries, kdata_xstddev and kdata_ystddev
       return 0.0.  Otherwise, they returns the	standard deviation value.

SEE ALSO
       kdata_xmean(3), kdata_ymean(3), kplot(3)

FreeBSD	ports 15.quarterly     January 26, 2015		      KDATA_XSTDDEV(3)

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