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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.