Matrix element changes according to reference

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ANAND ASP
ANAND ASP 2020-11-29
编辑： Walter Roberson 2020-11-29
i have matrix Y and modify as ANS
Y=[ 11 12 13;
21 22 23;
31 32 33]
A=[1 1;
2 3;
3 2]
ANS=[ 11 13 12;
31 33 32;
21 23 22]
i have A matrix which indicates changes in matrix i.e., 1 is replace with 1, 2 is replace with 3 and 3 is replace with 2
according to that i want to change matrix Y to ANS. Change matrix elements using matrix A

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回答（1 个）

Walter Roberson
Walter Roberson 2020-11-29
编辑：Walter Roberson 2020-11-29
Ran in:
Y=[ 11 12 13;
21 22 23;
31 32 33];
A=[1 1;
2 3;
3 2];
Y(A(:,2), A(:,2))
ans = 3×3
11 13 12 31 33 32 21 23 22

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