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dagstndn.c
Go to the documentation of this file.
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "local_proto.h"
double *Cdhc_dagostino_d(double *x, int n)
{
int i;
static double y[2];
double d, s, t = 0., *xcopy, m2, s1 = 0., s2, mn = 0.0;
if ((xcopy = (double *)malloc(n * sizeof(double))) == NULL) {
fprintf(stderr, "Memory allocation error\n");
exit(EXIT_FAILURE);
}
for (i = 0; i < n; ++i)
xcopy[i] = x[i];
qsort(xcopy, n, sizeof(double), Cdhc_dcmp);
for (i = 0; i < n; ++i) {
t += xcopy[i] * ((i + 1) - 0.5 * (n + 1));
mn += xcopy[i];
}
m2 = mn / n;
for (i = 0; i < n; ++i)
s1 += (xcopy[i] - m2) * (xcopy[i] - m2);
s2 = s1 / n;
s = sqrt(s2);
d = t / (n * n * s);
/* y[0] = (d - 1. / (2*sqrt (M_PI))) * sqrt ((double)n) / 0.02998598; */
y[0] = d;
y[1] = sqrt((double)n) * (y[0] - 0.28209479) / 0.02998598;
#ifdef NOISY
fprintf(stdout, " TEST4 DAGN =%10.4f\n", y[0]);
#endif /* NOISY */
return y;
}
NULL
#define NULL
Definition ccmath.h:32
Cdhc_dagostino_d
double * Cdhc_dagostino_d(double *x, int n)
Definition dagstndn.c:6
Cdhc_dcmp
int Cdhc_dcmp(const void *i, const void *j)
Definition dcmp.c:1
t
double t
Definition driver/set_window.c:5
x
#define x