Using a matrix as pairs of indexes of another matrix
9 views (last 30 days)
Show older comments
For instance:
x=[
1 2 3 4 5 6 7 8 9
10 20 30 40 50 60 70 80 90
100 200 300 400 500 600 700 800 900];
% idx are coordinates (row,col) of x array
idx=[1 3
2 5
3 8];
for i=1:size(idx,1) % cycle through pairs of idx
y(i)=x(idx(i,1),idx(i,2));
end
y
y =
3 50 800
How can this be done without a loop?
0 Comments
Accepted Answer
More Answers (0)
See Also
Categories
Find more on Matrix Indexing in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!