how to index zeros or remove zeros for indexing?

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Shubham Mohan Tatpalliwar
回答： Bruno Luong 2018-10-11
if
if true
% code
A=[1 2 3 0 0 4]
B=[1 3 5 2 4 5]
C=[1 56 65 65 65; 4 5 45 546 4; 54 54 51 21 21; 4 453 3645 534 4; 54 554 54 541 1]
D= C(A,B)
end
i want D to be zero when A is zero but it shows indexing is not valid

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采纳的回答

Bruno Luong
Bruno Luong 2018-10-11
D=zeros(length(A),length(B))
D(A>0,B>0)=C(A(A>0),B(B>0))

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