How can I compare two matrices of different dimensions without looping?
1 view (last 30 days)
Show older comments
Hi, I have two matrices of different dimensions. For example:
A=[1 1 1 1; 2 1 1 1; 2 0 0 0; 3 0 1 0; 3 0 0 0; 3 0 0 1; 4 1 1 1; 5 1 0 1; 5 1 1 1; 5 0 0 1];
B=[3 0 1 0; 3 0 0 1; 5 1 0 1; 5 0 0 1];
I want to obtain a vector C of dimension size(A,1)x 1 with C(i) equal to 1 if A(i,:) is equal to at least one row of B and 0 otherwise. I cannot use loops because in practice matrices A and B have very high dimensions. In this particular example, I should get:
C=[0; 0; 0; 1; 0; 1; 0; 1; 0; 1];
Thanks!
0 Comments
Accepted Answer
Azzi Abdelmalek
on 27 Nov 2013
Edited: Azzi Abdelmalek
on 27 Nov 2013
C=ismember(A,B,'rows')
0 Comments
More Answers (0)
See Also
Categories
Find more on Loops and Conditional Statements 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!