|
KDATA_XMAX(3) |
Library Functions Manual |
KDATA_XMAX(3) |
NAME
kdata_xmax, kdata_ymax, — find maxima in a data source
LIBRARY
library “libkplot”
SYNOPSIS
#include <cairo.h>
#include <kplot.h>
ssize_t
kdata_xmax(
const struct kdata *data,
struct kpair *kp);
ssize_t
kdata_ymax(
const struct kdata *data,
struct kpair *kp);
DESCRIPTION
The kdata_xmax and kdata_ymax functions find the maximum point in a data source, filling in kp if it is not NULL. The maximum point is the first maximum: thus, if multiple minima exist of the same value, the first will be returned.
RETURN VALUES
If the data source has zero entries, kdata_xmax and kdata_ymax return -1. Otherwise, they return the index of the maximum.