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- function [m] = spm_multrnd(p,N)
- % Sample from multinomial distribution
- % FORMAT [m] = spm_multrnd(p,N)
- %
- % p - [M x 1] vector of probabilities
- % N - Number of samples to generate
- %
- % m - [N x 1] vector of samples, where each sample is number from 1 to M
- %__________________________________________________________________________
- % Copyright (C) 2009 Wellcome Trust Centre for Neuroimaging
- % Will Penny
- % $Id: spm_multrnd.m 3190 2009-06-08 17:13:36Z guillaume $
- cp = [0; cumsum(p(:))];
- m = zeros(N,1);
- for n=1:N
- m(n) = find(rand > cp, 1, 'last');
- end
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