print value to matrix

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Esra Demirbilek
Esra Demirbilek 2022-5-28
回答： Voss 2022-5-28
Hello everyone,
I have a code.In this code, there are V values ​​consisting of 20 rows as a result of each iteration.What I want to do: I want to see the v values ​​formed in each iteration in the same matrix. How can I do it?
for example;
iteration:1
V=
10
5
1
....
iteration:2
V=
15
4
2
....
V_new;
iteration 1 2 3 4 ....
10 15 20 10
5 4 3 2
1 2 3 8
thanks advance

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回答（2 个）

dpb
dpb 2022-5-28
nIter=YourNumberOfTotalIterations;
nRows=20;
V=zeros(nRows,nIter); % preallocate
for i=1:nIter
V(:,i)=YourFunctionCreatingVector(...);
end
Voss
Voss 2022-5-28
V_new = [];
for ii = 1:max_iterations
% calculate V
V_new(:,ii) = V;
end
Also, if you know ahead of time how many iterations there will be, you can preallocate V_new to be the appropriate size before the loop:
V_new = zeros(20,max_iterations);

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