Create design matrix for ANOVA

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!

Answer 1

[Prashant Arora]

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.