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2025-09-12 18:55:25 +09:00

36 lines
711 B
C

/* Driver for routine evlmem */
#include <stdio.h>
#include <stdlib.h>
#define NRANSI
#include "nr.h"
#include "nrutil.h"
#define N 1000
#define M 10
#define NFDT 16
int main(void)
{
int i;
float fdt,pm,*cof,*data;
FILE *fp;
cof=vector(1,M);
data=vector(1,N);
if ((fp = fopen("spctrl.dat","r")) == NULL)
nrerror("Data file spctrl.dat not found\n");
for (i=1;i<=N;i++) fscanf(fp,"%f",&data[i]);
fclose(fp);
memcof(data,N,M,&pm,cof);
printf("Power spectum estimate of data in spctrl.dat\n");
printf(" f*delta power\n");
for (fdt=0.0;fdt<=0.5;fdt+=0.5/NFDT)
printf("%12.6f %12.6f\n",fdt,evlmem(fdt,cof,M,pm));
free_vector(data,1,N);
free_vector(cof,1,M);
return 0;
}
#undef NRANSI