1D array to 2D array positions
3 views (last 30 days)
Show older comments
I would like to 'convert' a 1D array to a 2D matrix considering the value inside the array as:
A =
1 3 4 4 3
B =
0 0 0 0 0
0 0 1 1 0
0 1 0 0 1
0 0 0 0 0
1 0 0 0 0
Can you suggest a very fast way to do that?
The row number is fixed at 5 here (a known value).
0 Comments
Accepted Answer
James Tursa
on 30 Apr 2019
Edited: James Tursa
on 30 Apr 2019
n = 5;
B = zeros(n,size(A,2));
B(sub2ind(size(B),n+1-A,1:size(A,2))) = 1;
0 Comments
More Answers (0)
See Also
Categories
Find more on Matrices and Arrays 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!