How to get the compressed row sparse CRS in a matrix ?
6 views (last 30 days)
Show older comments
I want to get the compressed row sparse (CRS) of the following matrix.
A=[ 1 0 -2 0 0;...
2 8 0 1 0;...
0 0 3 0 -2;...
0 -3 2 0 0;...
1 2 0 0 -4]
So far I have the folliwing code but how ever I do not know to get the row pointer. Hoow do I get the row pointer for the above matrix ?
So far i have...
n=length(A);
c=1;
for i=1:n
for j=1:n
if A(i,j) ~= 0;
row(c,1)=i;
col(c,1)=j;
val(c,1)=A(i,j);
index(c,1)= c;
data = {index, val};
c=c+1;
end
end
end
0 Comments
Answers (0)
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!