MATLAB: How to rewrite matrix ‘Y’ as matrix ‘A’

matrix manipulation

Let ‘Y’ be a matrix of ‘N’ rows and ‘T’ columns. How to rewrite matrix ‘Y’ as matrix ‘A’? Where matrix ‘A’ is having ‘N*(T-2)’ rows and ‘((T-1)*(T-2))/2’ columns.

Best Answer

You can also use for-loops:
 for j = 1:size(Y, 1)
   for i = 1:size(Y,2)
     A(i+(j-1)*size(Y,2),(1:i)+sum(1:i-1)) = Y(j,1:i);
   end
 end
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