How to create a matrix from for loop result?
1 view (last 30 days)
Show older comments
I repelem the element by the index
D = [170, -80, -30, 0, -50, -30, 20, -60, 100, -60 -20];
Iplus=find(D>0);
for i=1:size(Iplus,2)
a=ceil(D(Iplus(i))/100);
A=repelem(Iplus(i),a*2)
end
How can I store all result as below into one matrix? like A=[1 1 1 1 7 7 9 9]
A =
1 1 1 1
A =
7 7
A =
9 9
0 Comments
Accepted Answer
Jos (10584)
on 28 Apr 2019
D = [170, -80, -30, 0, -50, -30, 20, -60, 100, -60 -20];
Iplus=find(D>0);
A = [] ; % initialize
for i=1:size(Iplus,2)
a=ceil(D(Iplus(i))/100);
Anew = repelem(Iplus(i),a*2)
A = [A Anew] % append
end
Note that Matlab will warn you, because A is growing every iteration. With some thinking you might be able to optimise or even vectorise this piece of code.
More Answers (0)
See Also
Categories
Find more on Matrix Indexing 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!