How can I store all outputs from a nested for loop?
显示 更早的评论
I know this might be a common problem, and tried a lot of different answers posted under similar questions. Anyway, here's a basic idea.
a = rand(2,3);
b = rand(2,3);
c = rand(2,3);
for i=1:length(a(:,1))
for j=1:length(a(1,:))
z = [a(i,j), b(i,j), c(i,j)]
end
end
As you can see, I get a 1x3 matrix for z in every iteration, but I want to store them, so I'd have a z as 6x3. I know I haven't preallocated for z here, btw.
采纳的回答
This is easier using linear indexing:
a = rand(2,3);
b = rand(2,3);
c = rand(2,3);
z = nan(numel(a),3); % preallocate
for k = 1:numel(a)
z(k,:) = [a(k),b(k),c(k)];
end
display(z)
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