Acquiring related Matrix Members
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
I have a n by m matrix A and 1 by n array B. Assume
A = rand(3,5)
B = [3;5;2]
How can I get 1st rows 3rd element, 2nd rows 5th element and 3rd rows 2. element of A matrix w/o for loop?
Each rows related element is the member of B array as you can see?
0 Kommentare
Akzeptierte Antwort
Weitere Antworten (1)
Andrei Bobrov
am 7 Aug. 2012
Bearbeitet: Andrei Bobrov
am 7 Aug. 2012
out = A(sub2ind(size(A),(1:numel(B))',B(:)));
0 Kommentare
Siehe auch
Kategorien
Mehr zu Multidimensional Arrays finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!