Subtracting 2 matrices of different dimensions
1 view (last 30 days)
Show older comments
a{1}=[1 3 4 5;
3 3 4 5;
5 5 4 5
2 4 2 6;
6 5 2 6
7 2 3 1;]
[b,idx]=unique(a{1}(:,3:4),'rows','stable');
uniquematrix{1}=a{1}(idx,:)
1 3 4 5 %Content of uniquematrix{1}
2 4 2 6
7 2 3 1
After a{1}-uniquematrix{1}
3 3 4 5 %My desired output
5 5 4 5
6 5 2 6
Is there a function to directly perform a{1}-uniquematrix{1}?
0 Comments
Accepted Answer
Azzi Abdelmalek
on 29 Aug 2013
a=[1 3 4 5;
3 3 4 5;
5 5 4 5
2 4 2 6
6 5 2 6
7 2 3 1]
[b,idx]=unique(a(:,3:4),'rows','stable')
out=a(setdiff(1:size(a,1),idx),:)
0 Comments
More Answers (1)
Azzi Abdelmalek
on 29 Aug 2013
a=[1 3 4 5;
3 3 4 5;
5 5 4 5
2 4 2 6
6 5 2 6
7 2 3 1]
[b,idx]=unique(a(:,3:4),'rows','stable')
uniquematrix=a(idx,:)
n1=size(a,1)
n2=size(uniquematrix,1)
uniquematrix=[uniquematrix;zeros(n1-n2,size(a,2))]
out=a-uniquematrix
0 Comments
See Also
Categories
Find more on Multidimensional 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!