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-rw-r--r--gsl-1.9/histogram/test1d.c483
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diff --git a/gsl-1.9/histogram/test1d.c b/gsl-1.9/histogram/test1d.c
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+/* histogram/test.c
+ *
+ * Copyright (C) 1996, 1997, 1998, 1999, 2000 Brian Gough
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <config.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <gsl/gsl_histogram.h>
+#include <gsl/gsl_test.h>
+#include <gsl/gsl_ieee_utils.h>
+
+#define N 397
+#define NR 10
+
+void
+test1d (void)
+{
+ double xr[NR + 1] =
+ {0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0};
+
+ gsl_histogram *h, *h1, *hr, *g;
+ size_t i, j;
+
+ gsl_ieee_env_setup ();
+
+ h = gsl_histogram_calloc (N);
+ h1 = gsl_histogram_calloc (N);
+ g = gsl_histogram_calloc (N);
+
+ gsl_test (h->range == 0, "gsl_histogram_alloc returns valid range pointer");
+ gsl_test (h->bin == 0, "gsl_histogram_alloc returns valid bin pointer");
+ gsl_test (h->n != N, "gsl_histogram_alloc returns valid size");
+
+
+ hr = gsl_histogram_calloc_range (NR, xr);
+
+ gsl_test (hr->range == 0, "gsl_histogram_calloc_range returns valid range pointer");
+ gsl_test (hr->bin == 0, "gsl_histogram_calloc_range returns valid bin pointer");
+ gsl_test (hr->n != NR, "gsl_histogram_calloc_range returns valid size");
+
+ {
+ int status = 0;
+ for (i = 0; i <= NR; i++)
+ {
+ if (hr->range[i] != xr[i])
+ {
+ status = 1;
+ }
+ };
+
+ gsl_test (status, "gsl_histogram_calloc_range creates range");
+ }
+
+ for (i = 0; i <= NR; i++)
+ {
+ hr->range[i] = 0.0;
+ }
+
+ {
+ int status = gsl_histogram_set_ranges (hr, xr, NR+1);
+
+ for (i = 0; i <= NR; i++)
+ {
+ if (hr->range[i] != xr[i])
+ {
+ status = 1;
+ }
+ };
+
+ gsl_test (status, "gsl_histogram_set_range sets range");
+ }
+
+
+ for (i = 0; i < N; i++)
+ {
+ gsl_histogram_accumulate (h, (double) i, (double) i);
+ };
+
+ {
+ int status = 0;
+
+ for (i = 0; i < N; i++)
+ {
+ if (h->bin[i] != (double) i)
+ {
+ status = 1;
+ }
+ };
+
+ gsl_test (status, "gsl_histogram_accumulate writes into array");
+ }
+
+
+ {
+ int status = 0;
+
+ for (i = 0; i < N; i++)
+ {
+ if (gsl_histogram_get (h, i) != i)
+ status = 1;
+ };
+ gsl_test (status, "gsl_histogram_get reads from array");
+ }
+
+ for (i = 0; i <= N; i++)
+ {
+ h1->range[i] = 100.0 + i;
+ }
+
+ gsl_histogram_memcpy (h1, h);
+
+ {
+ int status = 0;
+ for (i = 0; i <= N; i++)
+ {
+ if (h1->range[i] != h->range[i])
+ status = 1;
+ };
+ gsl_test (status, "gsl_histogram_memcpy copies bin ranges");
+ }
+
+ {
+ int status = 0;
+ for (i = 0; i < N; i++)
+ {
+ if (gsl_histogram_get (h1, i) != gsl_histogram_get (h, i))
+ status = 1;
+ };
+ gsl_test (status, "gsl_histogram_memcpy copies bin values");
+ }
+
+ gsl_histogram_free (h1);
+
+ h1 = gsl_histogram_clone (h);
+
+ {
+ int status = 0;
+ for (i = 0; i <= N; i++)
+ {
+ if (h1->range[i] != h->range[i])
+ status = 1;
+ };
+ gsl_test (status, "gsl_histogram_clone copies bin ranges");
+ }
+
+ {
+ int status = 0;
+ for (i = 0; i < N; i++)
+ {
+ if (gsl_histogram_get (h1, i) != gsl_histogram_get (h, i))
+ status = 1;
+ };
+ gsl_test (status, "gsl_histogram_clone copies bin values");
+ }
+
+ gsl_histogram_reset (h);
+
+ {
+ int status = 0;
+
+ for (i = 0; i < N; i++)
+ {
+ if (h->bin[i] != 0)
+ status = 1;
+ }
+ gsl_test (status, "gsl_histogram_reset zeros array");
+ }
+
+
+ {
+ int status = 0;
+
+ for (i = 0; i < N; i++)
+ {
+ gsl_histogram_increment (h, (double) i);
+
+ for (j = 0; j <= i; j++)
+ {
+ if (h->bin[j] != 1)
+ {
+ status = 1;
+ }
+ }
+
+ for (j = i + 1; j < N; j++)
+ {
+ if (h->bin[j] != 0)
+ {
+ status = 1;
+ }
+ }
+ }
+
+ gsl_test (status, "gsl_histogram_increment increases bin value");
+ }
+
+ {
+ int status = 0;
+ for (i = 0; i < N; i++)
+ {
+ double x0 = 0, x1 = 0;
+
+ gsl_histogram_get_range (h, i, &x0, &x1);
+
+ if (x0 != i || x1 != i + 1)
+ {
+ status = 1;
+ }
+ }
+ gsl_test (status, "gsl_histogram_getbinrange returns bin range");
+ }
+
+ {
+ int status = 0;
+ if (gsl_histogram_max (h) != N)
+ status = 1;
+ gsl_test (status, "gsl_histogram_max returns maximum");
+ }
+
+ {
+ int status = 0;
+ if (gsl_histogram_min (h) != 0)
+ status = 1;
+ gsl_test (status, "gsl_histogram_min returns minimum");
+ }
+
+ {
+ int status = 0;
+ if (gsl_histogram_bins (h) != N)
+ status = 1;
+ gsl_test (status, "gsl_histogram_bins returns number of bins");
+ }
+
+ h->bin[2] = 123456.0;
+ h->bin[4] = -654321;
+
+ {
+ double max = gsl_histogram_max_val (h);
+ gsl_test (max != 123456.0, "gsl_histogram_max_val finds maximum value");
+ }
+
+ {
+ double min = gsl_histogram_min_val (h);
+ gsl_test (min != -654321.0, "gsl_histogram_min_val finds minimum value");
+ }
+
+ {
+ size_t imax = gsl_histogram_max_bin (h);
+ gsl_test (imax != 2, "gsl_histogram_max_bin finds maximum value bin");
+ }
+
+ {
+ size_t imin = gsl_histogram_min_bin (h);
+ gsl_test (imin != 4, "gsl_histogram_min_bin find minimum value bin");
+ }
+
+ for (i = 0; i < N; i++)
+ {
+ h->bin[i] = i + 27;
+ g->bin[i] = (i + 27) * (i + 1);
+ }
+
+ {
+ double sum=gsl_histogram_sum (h);
+ gsl_test(sum != N*27+((N-1)*N)/2, "gsl_histogram_sum sums all bin values");
+ }
+
+ gsl_histogram_memcpy (h1, g);
+ gsl_histogram_add (h1, h);
+
+ {
+ int status = 0;
+ for (i = 0; i < N; i++)
+ {
+ if (h1->bin[i] != g->bin[i] + h->bin[i])
+ status = 1;
+ }
+ gsl_test (status, "gsl_histogram_add histogram addition");
+ }
+
+ gsl_histogram_memcpy (h1, g);
+ gsl_histogram_sub (h1, h);
+
+ {
+ int status = 0;
+ for (i = 0; i < N; i++)
+ {
+ if (h1->bin[i] != g->bin[i] - h->bin[i])
+ status = 1;
+ }
+ gsl_test (status, "gsl_histogram_sub histogram subtraction");
+ }
+
+
+ gsl_histogram_memcpy (h1, g);
+ gsl_histogram_mul (h1, h);
+
+ {
+ int status = 0;
+ for (i = 0; i < N; i++)
+ {
+ if (h1->bin[i] != g->bin[i] * h->bin[i])
+ status = 1;
+ }
+ gsl_test (status, "gsl_histogram_mul histogram multiplication");
+ }
+
+
+ gsl_histogram_memcpy (h1, g);
+ gsl_histogram_div (h1, h);
+
+ {
+ int status = 0;
+ for (i = 0; i < N; i++)
+ {
+ if (h1->bin[i] != g->bin[i] / h->bin[i])
+ status = 1;
+ }
+ gsl_test (status, "gsl_histogram_div histogram division");
+ }
+
+ gsl_histogram_memcpy (h1, g);
+ gsl_histogram_scale (h1, 0.5);
+
+ {
+ int status = 0;
+ for (i = 0; i < N; i++)
+ {
+ if (h1->bin[i] != 0.5 * g->bin[i])
+ status = 1;
+ }
+ gsl_test (status, "gsl_histogram_scale histogram scaling");
+ }
+
+ gsl_histogram_memcpy (h1, g);
+ gsl_histogram_shift (h1, 0.25);
+
+ {
+ int status = 0;
+ for (i = 0; i < N; i++)
+ {
+ if (h1->bin[i] != 0.25 + g->bin[i])
+ status = 1;
+ }
+ gsl_test (status, "gsl_histogram_shift histogram shift");
+ }
+
+
+ gsl_histogram_free (h); /* free whatever is in h */
+
+ h = gsl_histogram_calloc_uniform (N, 0.0, 1.0);
+
+ gsl_test (h->range == 0,
+ "gsl_histogram_calloc_uniform returns valid range pointer");
+ gsl_test (h->bin == 0,
+ "gsl_histogram_calloc_uniform returns valid bin pointer");
+ gsl_test (h->n != N,
+ "gsl_histogram_calloc_uniform returns valid size");
+
+ gsl_histogram_accumulate (h, 0.0, 1.0);
+ gsl_histogram_accumulate (h, 0.1, 2.0);
+ gsl_histogram_accumulate (h, 0.2, 3.0);
+ gsl_histogram_accumulate (h, 0.3, 4.0);
+
+ {
+ size_t i1, i2, i3, i4;
+ double expected;
+ int status = gsl_histogram_find (h, 0.0, &i1);
+ status = gsl_histogram_find (h, 0.1, &i2);
+ status = gsl_histogram_find (h, 0.2, &i3);
+ status = gsl_histogram_find (h, 0.3, &i4);
+
+ for (i = 0; i < N; i++)
+ {
+ if (i == i1)
+ {
+ expected = 1.0;
+ }
+ else if (i == i2)
+ {
+ expected = 2.0;
+ }
+ else if (i == i3)
+ {
+ expected = 3.0;
+ }
+ else if (i == i4)
+ {
+ expected = 4.0;
+ }
+ else
+ {
+ expected = 0.0;
+ }
+
+ if (h->bin[i] != expected)
+ {
+ status = 1;
+ }
+
+ }
+ gsl_test (status, "gsl_histogram_find returns index");
+ }
+
+
+ {
+ FILE *f = fopen ("test.txt", "w");
+ gsl_histogram_fprintf (f, h, "%.19e", "%.19e");
+ fclose (f);
+ }
+
+ {
+ FILE *f = fopen ("test.txt", "r");
+ gsl_histogram *hh = gsl_histogram_calloc (N);
+ int status = 0;
+
+ gsl_histogram_fscanf (f, hh);
+
+ for (i = 0; i < N; i++)
+ {
+ if (h->range[i] != hh->range[i])
+ status = 1;
+ if (h->bin[i] != hh->bin[i])
+ status = 1;
+ }
+ if (h->range[N] != hh->range[N])
+ status = 1;
+
+ gsl_test (status, "gsl_histogram_fprintf and fscanf");
+
+ gsl_histogram_free (hh);
+ fclose (f);
+ }
+
+ {
+ FILE *f = fopen ("test.dat", "wb");
+ gsl_histogram_fwrite (f, h);
+ fclose (f);
+ }
+
+ {
+ FILE *f = fopen ("test.dat", "rb");
+ gsl_histogram *hh = gsl_histogram_calloc (N);
+ int status = 0;
+
+ gsl_histogram_fread (f, hh);
+
+ for (i = 0; i < N; i++)
+ {
+ if (h->range[i] != hh->range[i])
+ status = 1;
+ if (h->bin[i] != hh->bin[i])
+ status = 1;
+ }
+ if (h->range[N] != hh->range[N])
+ status = 1;
+
+ gsl_test (status, "gsl_histogram_fwrite and fread");
+
+ gsl_histogram_free (hh);
+ fclose (f);
+ }
+
+ gsl_histogram_free (h);
+ gsl_histogram_free (g);
+ gsl_histogram_free (h1);
+ gsl_histogram_free (hr);
+}
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