Replicate matrix elements without for loop

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Howard Wilton
Howard Wilton 2022-11-22
评论： Howard Wilton 2022-11-22
I am trying to take the matrix
base =[1 2; 3 4]
and replicate the elements to give
expn = [ 1 1 2 2; 1 1 2 2; 3 3 4 4; 3 3 4 4]
without using for loops. I would like to use repmat but not sure how to do that elementwise.

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采纳的回答

David Hill
David Hill 2022-11-22
Ran in:
base =[1 2; 3 4];
repelem(base,2,2)
ans = 4×4
1 1 2 2 1 1 2 2 3 3 4 4 3 3 4 4

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