increasing spdiags matrix at each iteration
2 views (last 30 days)
Show older comments
Hi, I was wondering if someone has an idea how to horzcat at each iteration spdiag matrix? Thanks!!!
ot = ones(N,1);
N=50;
for i=1:10
if i=1
A2 = spdiags([ot ot -ot -ot],[0 N -1 N-1],N,N*2);
else
%%desired result
%%for i=2 it should be A2 = horzcat(A2,A2);
% for i=3 A2 = horzcat(A2,A2,A2) and so on;
end
end
0 Comments
Answers (1)
James Tursa
on 19 May 2017
Edited: James Tursa
on 19 May 2017
A2 = repmat(A2,1,i);
But it seems to me that you may be running into memory problems with this, since A2 is recursively using the last A2 with repmat to build the new A2.
0 Comments
See Also
Categories
Find more on Sparse Matrices 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!