testrandom.c

NIST Net – A Linux-based Network Emulation Tool, It is a raw IP packet filter with many controllable

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "tabledist.h"

/*
 * testrandom nvalues correlation
 */

main(int argc, char **argv)
{
	int nvalues, i, value;
	double correlation;
	int range;
	InternalStats stats;

	if (argc < 4) {
		fprintf(stderr, "testrandom nvalues correlation range\n");
		exit(1);
	}
	nvalues = atoi(argv[1]);
	correlation = atof(argv[2]);
	range = atoi(argv[3]);
	if (correlation < -1.0 || correlation > 1.0) {
		fprintf(stderr, "correlation must be between -1 and 1\n");
		exit(1);
	}
	MakeDistributedStats(0.0, 0.0, correlation, &stats);
	value = 0;

	for (i=0; i < nvalues; ++i) {
		if (range)
			value = rangecorrelatedrandom(&stats, range);
		else
			value = correlatedrandom(&stats);
		printf("%d\n", value);
	}
	exit(0);
}