the values of coordinates in matlab
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if i have the matrix s= [
0 0.4000 0.5000 0.6000 0.9000
0.4000 0 0.3000 0.4000 0.5000
0.5000 0.3000 0 0.5000 0.8000
0.6000 0.4000 0.5000 0 0.6000
0.9000 0.5000 0.8000 0.6000 0
and coordinates=[1 2; 1 3; 2 4] then i want that the values of previous coordinates equal zero. i.e s(1,2),s(2,1),s(1,3)s(3,1),s(2,4),s(4,2) equal 0 i.e i want this result
0 0 0 0.6000 0.9000
0 0 0.3000 0 0.5000
0 0.3000 0 0.5000 0.8000
0.6000 0 0.5000 0 0.6000
0.9000 0.5000 0.8000 0.6000 0
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Antworten (1)
Azzi Abdelmalek
am 16 Aug. 2015
idx=[1 2; 1 3; 2 4]
ii1=idx(:,1)
ii2=idx(:,2)
jdx=sub2ind(size(s),[ii1(:);ii2(:)],[ii2(:);ii1(:)])
s(jdx)=0
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