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.

SEE ALSO

kdata_xmin(3), kdata_ymin(3), kplot(3)