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- ## Copyright (C) 1997 Kurt Hornik
- ##
- ## 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, 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 file. If not, write to the Free Software Foundation,
- ## 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- ## Generate a random sample of size N from the hypergeometric
- ## distribution with parameters m, t, and n.
- ##
- ## The parameters m, t, and n must positive integers with m and n not
- ## greater than t.
-
- function rnd = hypergeometric_rnd (N, m, t, n)
-
- if (nargin != 4)
- usage ("hypergeometric_rnd (N, m, t, n)");
- endif
-
- if ((m < 0) | (t < 0) | (n <= 0) | (m != round (m)) |
- (t != round (t)) | (n != round (n)) | (m > t) | (n > t))
- if (prefer_column_vectors)
- rnd = NaN * ones (N, 1)
- else
- rnd = NaN * ones (1, N)
- endif
- else
- rnd = discrete_rnd (N, 0 : n, hypergeometric_pdf (0 : n, m, t, n));
- endif
-
- endfunction
-