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dirichletrnd.m
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dirichletrnd.m
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% % Copyright (c) 2019-2020 Carlo Manzo & Tina Košuta
% If you use this code, please cite:
% (http://dx.doi.org/10.1039/C9CP05616E)
% (https://arxiv.org/abs/1909.13133)
% Permission is hereby granted, free of charge, to any person
% obtaining a copy of this software and associated documentation files
% (the "Software"), to deal in the Software without restriction,
% including without limitation the rights to use, copy, modify, merge,
% publish, distribute, sublicense, and/or sell copies of the Software,
% and to permit persons to whom the Software is furnished to do so,
% subject to the following conditions:
% The above copyright notice and this permission notice shall be
% included in all copies or substantial portions of the Software.
% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
% EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
% MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
% IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
% CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
% TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
% SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
function r = dirichletrnd(delta,n)
p = length(delta);
r = gamrnd(repmat(delta,n,1),1,n,p);
r = r ./ repmat(sum(r,2),1,p);