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