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- /* histogram/add2d.c
- *
- * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 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 3 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 "gsl__config.h"
- #include <stdlib.h>
- #include "gsl_errno.h"
- #include "gsl_histogram.h"
- #include "gsl_histogram2d.h"
- #include "gsl_histogram__find2d.c"
- int
- gsl_histogram2d_increment (gsl_histogram2d * h, double x, double y)
- {
- int status = gsl_histogram2d_accumulate (h, x, y, 1.0);
- return status;
- }
- int
- gsl_histogram2d_accumulate (gsl_histogram2d * h,
- double x, double y, double weight)
- {
- const size_t nx = h->nx;
- const size_t ny = h->ny;
- size_t i = 0, j = 0;
- int status = find2d (h->nx, h->xrange, h->ny, h->yrange, x, y, &i, &j);
- if (status)
- {
- return GSL_EDOM;
- }
- if (i >= nx)
- {
- GSL_ERROR ("index lies outside valid range of 0 .. nx - 1",
- GSL_ESANITY);
- }
- if (j >= ny)
- {
- GSL_ERROR ("index lies outside valid range of 0 .. ny - 1",
- GSL_ESANITY);
- }
- h->bin[i * ny + j] += weight;
- return GSL_SUCCESS;
- }
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