/* nag_gamma_pdf_vector (g01kkc) Example Program. * * Copyright 2011, Numerical Algorithms Group. * * Mark 23, 2011. */ #include #include #include #include int main(void) { /* Integer scalar and array declarations */ Integer lx, la, lb, i, lout; Integer *ivalid = 0; Integer exit_status = 0; /* NAG structures */ NagError fail; Nag_Boolean ilog; /* Double scalar and array declarations */ double *x = 0, *a = 0, *b = 0, *pdf = 0; /* Character scalar and array declarations */ char cilog[40]; /* Initialise the error structure to print out any error messages */ INIT_FAIL(fail); printf("nag_gamma_pdf_vector (g01kkc) Example Program Results\n\n"); /* Skip heading in data file*/ scanf("%*[^\n] "); /* Read in the flag indicating whether logs are required */ scanf("%39s%*[^\n] ", cilog); ilog = (Nag_Boolean) nag_enum_name_to_value(cilog); /* Read in the input vectors */ scanf("%ld%*[^\n] ", &lx); if (!(x = NAG_ALLOC(lx, double))) { printf("Allocation failure\n"); exit_status = -1; goto END; } for (i = 0; i < lx; i++) scanf("%lf", &x[i]); scanf("%*[^\n] "); scanf("%ld%*[^\n] ", &la); if (!(a = NAG_ALLOC(la, double))) { printf("Allocation failure\n"); exit_status = -1; goto END; } for (i = 0; i < la; i++) scanf("%lf", &a[i]); scanf("%*[^\n] "); scanf("%ld%*[^\n] ", &lb); if (!(b = NAG_ALLOC(lb, double))) { printf("Allocation failure\n"); exit_status = -1; goto END; } for (i = 0; i < lb; i++) scanf("%lf", &b[i]); scanf("%*[^\n] "); /* Allocate memory for output */ lout = MAX(lx,MAX(la,lb)); if (!(pdf = NAG_ALLOC(lout, double)) || !(ivalid = NAG_ALLOC(lout, Integer))) { printf("Allocation failure\n"); exit_status = -1; goto END; } /* Calculate probability */ nag_gamma_pdf_vector(ilog,lx,x,la,a,lb,b,pdf,ivalid,&fail); if (fail.code != NE_NOERROR) { printf("Error from nag_gamma_pdf_vector (g01kkc).\n%s\n", fail.message); exit_status = 1; if (fail.code != NW_IVALID) goto END; } /* Display title */ printf(" x a b pdf ivalid\n"); printf(" ------------------------------------------------\n"); /* Display results */ for (i = 0; i < lout; i++) printf("%6.2f %6.2f %6.2f %9.3e %3ld\n", x[i%lx], a[i%la], b[i%lb], pdf[i], ivalid[i]); END: NAG_FREE(x); NAG_FREE(a); NAG_FREE(b); NAG_FREE(pdf); NAG_FREE(ivalid); return(exit_status); }