Mercurial > hg > camir-aes2014
diff toolboxes/FullBNT-1.0.7/KPMtools/rand_psd.m @ 0:e9a9cd732c1e tip
first hg version after svn
author | wolffd |
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date | Tue, 10 Feb 2015 15:05:51 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/toolboxes/FullBNT-1.0.7/KPMtools/rand_psd.m Tue Feb 10 15:05:51 2015 +0000 @@ -0,0 +1,13 @@ +function M = rand_psd(d, d2, k) +% Create a random positive definite matrix of size d by d by k (k defaults to 1) +% M = rand_psd(d, d2, k) default: d2 = d, k = 1 + +if nargin<2, d2 = d; end +if nargin<3, k = 1; end +if d2 ~= d, error('must be square'); end + +M = zeros(d,d,k); +for i=1:k + A = rand(d); + M(:,:,i) = A*A'; +end