3 * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 Brian Gough
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 3 of the License, or (at
8 * your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21 #include <gsl/gsl_errno.h>
22 #include <gsl/gsl_histogram2d.h>
27 gsl_histogram2d_get (const gsl_histogram2d * h, const size_t i, const size_t j)
29 const size_t nx = h->nx;
30 const size_t ny = h->ny;
34 GSL_ERROR_VAL ("index i lies outside valid range of 0 .. nx - 1",
40 GSL_ERROR_VAL ("index j lies outside valid range of 0 .. ny - 1",
44 return h->bin[i * ny + j];
48 gsl_histogram2d_get_xrange (const gsl_histogram2d * h, const size_t i,
49 double *xlower, double *xupper)
51 const size_t nx = h->nx;
55 GSL_ERROR ("index i lies outside valid range of 0 .. nx - 1", GSL_EDOM);
58 *xlower = h->xrange[i];
59 *xupper = h->xrange[i + 1];
65 gsl_histogram2d_get_yrange (const gsl_histogram2d * h, const size_t j,
66 double *ylower, double *yupper)
68 const size_t ny = h->ny;
72 GSL_ERROR ("index j lies outside valid range of 0 .. ny - 1", GSL_EDOM);
75 *ylower = h->yrange[j];
76 *yupper = h->yrange[j + 1];
82 gsl_histogram2d_find (const gsl_histogram2d * h,
83 const double x, const double y,
84 size_t * i, size_t * j)
86 int status = find (h->nx, h->xrange, x, i);
90 GSL_ERROR ("x not found in range of h", GSL_EDOM);
93 status = find (h->ny, h->yrange, y, j);
97 GSL_ERROR ("y not found in range of h", GSL_EDOM);