/* nag_mv_discrim (g03dac) Example Program. * * Copyright 1998 Numerical Algorithms Group. * * Mark 5, 1998. * Mark 8 revised, 2004. * */ #include #include #include #include #define GMEAN(I, J) gmean[(I) *tdgmean + J] #define X(I, J) x[(I) *tdx + J] int main(void) { Integer exit_status = 0, i, *ing = 0, *isx = 0, j, m, n, ng, *nig = 0, nvar, tdgmean; Integer tdx; NagError fail; char weight[2]; double *det = 0, df, *gc = 0, *gmean = 0, sig, stat, *wt = 0, *wtptr = 0; double *x = 0; INIT_FAIL(fail); printf("nag_mv_discrim (g03dac) Example Program Results\n\n"); /* Skip headings in data file */ scanf("%*[^\n]"); scanf("%ld", &n); scanf("%ld", &m); scanf("%ld", &nvar); scanf("%ld", &ng); scanf("%s", weight); if (n >= 1 && nvar >= 1 && m >= nvar && ng >= 2) { if (!(det = NAG_ALLOC(ng, double)) || !(gc = NAG_ALLOC((ng+1)*nvar*(nvar+1)/2, double)) || !(gmean = NAG_ALLOC(ng*nvar, double)) || !(wt = NAG_ALLOC(n, double)) || !(x = NAG_ALLOC(n*m, double)) || !(ing = NAG_ALLOC(n, Integer)) || !(isx = NAG_ALLOC(m, Integer)) || !(nig = NAG_ALLOC(ng, Integer))) { printf("Allocation failure\n"); exit_status = -1; goto END; } tdgmean = nvar; tdx = m; } else { printf("Invalid n or nvar or m or ng.\n"); exit_status = 1; return exit_status; } if (*weight == 'W') { for (i = 0; i < n; ++i) { for (j = 0; j < m; ++j) scanf("%lf", &X(i, j)); scanf("%ld", &ing[i]); scanf("%lf", &wt[i]); } wtptr = wt; } else { for (i = 0; i < n; ++i) { for (j = 0; j < m; ++j) scanf("%lf", &X(i, j)); scanf("%ld", &ing[i]); } } for (j = 0; j < m; ++j) scanf("%ld", &isx[j]); /* nag_mv_discrim (g03dac). * Test for equality of within-group covariance matrices */ nag_mv_discrim(n, m, x, tdx, isx, nvar, ing, ng, wtptr, nig, gmean, tdgmean, det, gc, &stat, &df, &sig, &fail); if (fail.code != NE_NOERROR) { printf("Error from nag_mv_discrim (g03dac).\n%s\n", fail.message); exit_status = 1; goto END; } printf("\nGroup means\n\n"); for (i = 0; i < ng; ++i) { for (j = 0; j < nvar; ++j) printf("%10.4f", GMEAN(i, j)); printf("\n"); } printf("\nLOG of determinants\n\n"); for (j = 0; j < ng; ++j) printf("%10.4f", det[j]); printf("\n\n%s%7.4f\n", "stat = ", stat); printf("%s%7.4f\n", " df = ", df); printf("%s%7.4f\n", " sig = ", sig); END: if (det) NAG_FREE(det); if (gc) NAG_FREE(gc); if (gmean) NAG_FREE(gmean); if (wt) NAG_FREE(wt); if (x) NAG_FREE(x); if (ing) NAG_FREE(ing); if (isx) NAG_FREE(isx); if (nig) NAG_FREE(nig); return exit_status; }