Create design matrix for ANOVA

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Jihyeon Kim
Jihyeon Kim 2017-4-22
回答： Prashant Arora 2017-4-27
How can I create a design matrix for ANOVA test manually without writing 0's and 1's (too tedious!!) ? Such as [1 1 0 0; 1 1 0 0; 1 0 1 0; 1 0 1 0; 1 0 0 1; 1 0 0 1]
Thanks in advance!

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Prashant Arora
Prashant Arora 2017-4-27
You can start with zeros and use matrix indexing to create ones.
A = zeros(10);
rowInd = [1 2 3 4];
colInd = [5 7 8 9];
Ind = sub2ind(size(A),rowInd,colInd);
A(Ind) = 1;
If there's some pattern involved, you can probably do this more efficiently.

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