expanding matrix
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Hi all
I want to expand matrix.for example if x=[x1;x2] then the new matrix will be:
xx = [x1 x1 x1;x1 x1 x2;x1 x2 x1;x1 x2 x2;x2 x1 x1;x2 x1 x2;x2 x2 x1;x2 x2 x2]
How can I do that
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Matt Fig
il 16 Mag 2011
Here is a general purpose file for doing the same thing. What you are basically doing is finding the permutations of the set [x1 x2] taken three at a time with replacement. For example:
x1 = 7;x2 = 9; % Sample data
xx = npermutek([x1 x2],3);
xx =
7 7 7
7 7 9
7 9 7
7 9 9
9 7 7
9 7 9
9 9 7
9 9 9
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