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2025-02-Numerical/lib/nr/ansi/recipes/predic.c
2025-09-12 18:55:25 +09:00

23 lines
416 B
C

#define NRANSI
#include "nrutil.h"
void predic(float data[], int ndata, float d[], int m, float future[],
int nfut)
{
int k,j;
float sum,discrp,*reg;
reg=vector(1,m);
for (j=1;j<=m;j++) reg[j]=data[ndata+1-j];
for (j=1;j<=nfut;j++) {
discrp=0.0;
sum=discrp;
for (k=1;k<=m;k++) sum += d[k]*reg[k];
for (k=m;k>=2;k--) reg[k]=reg[k-1];
future[j]=reg[1]=sum;
}
free_vector(reg,1,m);
}
#undef NRANSI