comparison toolboxes/FullBNT-1.0.7/KPMstats/sample.m @ 0:e9a9cd732c1e tip

first hg version after svn

+function x = sample(p, n)
+% SAMPLE    Sample from categorical distribution.
+% Returns a row vector of integers, sampled according to the probability
+% distribution p.
+% Uses the stick-breaking algorithm.
+% Much faster algorithms are also possible.
+
+if nargin < 2
+  n = 1;
+end
+
+cdf = cumsum(p(:));
+for i = 1:n
+  x(i) = sum(cdf < rand) + 1;
+end