gsl_histogram__get.c 1.7 KB

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  1. /* histogram/get.c
  2. *
  3. * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 Brian Gough
  4. *
  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.
  9. *
  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.
  14. *
  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.
  18. */
  19. #include "gsl__config.h"
  20. #include "gsl_errno.h"
  21. #include "gsl_histogram.h"
  22. #include "gsl_histogram__find.c"
  23. double
  24. gsl_histogram_get (const gsl_histogram * h, size_t i)
  25. {
  26. const size_t n = h->n;
  27. if (i >= n)
  28. {
  29. GSL_ERROR_VAL ("index lies outside valid range of 0 .. n - 1",
  30. GSL_EDOM, 0);
  31. }
  32. return h->bin[i];
  33. }
  34. int
  35. gsl_histogram_get_range (const gsl_histogram * h, size_t i,
  36. double *lower, double *upper)
  37. {
  38. const size_t n = h->n;
  39. if (i >= n)
  40. {
  41. GSL_ERROR ("index lies outside valid range of 0 .. n - 1", GSL_EDOM);
  42. }
  43. *lower = h->range[i];
  44. *upper = h->range[i + 1];
  45. return GSL_SUCCESS;
  46. }
  47. int
  48. gsl_histogram_find (const gsl_histogram * h,
  49. const double x, size_t * i)
  50. {
  51. int status = find (h->n, h->range, x, i);
  52. if (status)
  53. {
  54. GSL_ERROR ("x not found in range of h", GSL_EDOM);
  55. }
  56. return GSL_SUCCESS;
  57. }