How to modify this code for combining matrices
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I want to use matrix A and B to create matrix C.
I would like to modify my code to work well for this problem.
Any help and suggestion is appreciated.
A = (r1 r2 r3)
B=
[r1 r2
r3 r4
r2 r1
r5 r6
r2 r3
r3 r2
r3 r1
r1 r3]
C=(s1 s2 s3)
Matrix A and matrix C have the same size.
s1, s2, s3 are row’s number in matrix B. The row’s number in matrix B start from 0.
s1= bigger row’s number between r1 r2 and r2 r1
s2= bigger row’s number between r2 r3 and r3 r2
s3= bigger row’s number between r3 r1 and r1 r3
采纳的回答
Andrei Bobrov
2016-6-2
[m,n] = size(A);
Y1 = reshape(permute(cat(3,A,circshift(A,[0 -1])),[3,2,1]),2,[]); %
Y2 = flip(Y1,1);
Bp = permute(B,[2,3,1]);
X = reshape(any([all(bsxfun(@eq,Y1,Bp));all(bsxfun(@eq,Y2,Bp))]),m*n,[])';
C = reshape(max(bsxfun(@times,X,(1:size(B,1))')),[],m)'-1;
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