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KDATA_HIST_INCREMENT(3) |
Library Functions Manual |
KDATA_HIST_INCREMENT(3) |
NAME
kdata_hist_add kdata_hist_set — modify histogram data values
LIBRARY
library “libkplot”
SYNOPSIS
#include <cairo.h>
#include <kplot.h>
int
kdata_hist_add(
struct kdata *d,
double x,
double y);
int
kdata_hist_set(
struct kdata *d,
double x,
double y);
DESCRIPTION
The
kdata_hist_add and
kdata_hist_set set or add
y to the position mapped from
x after checking that
x lies in the range provided to
kdata_hist_alloc(3).
RETURN VALUES
kdata_hist_add and
kdata_hist_set return 0 if
x is outside of the histogram range, the source was not created with
kdata_hist_alloc(3), or if dependent data sources fail. Otherwise it returns non-zero.