- https://www.mathworks.com/matlabcentral/answers/57445-faq-how-can-i-create-variables-a1-a2-a10-in-a-loop
- https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval
hintializing variables with different numbers and saving them in a matrix
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Hi,
I have a question about initializing variables that contain different numbers in a matrix.
For example,
I want to obtain matrix V by using while loop:
V = [V1;V2;V3.....;Vn].
Instead of manually writing V1, V2, V3 .. in matrix V, I want it to be done by using a loop!
Thank you.
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Jan
le 5 Oct 2017
Modifié(e) : Jan
le 5 Oct 2017
This is asked daily for many years now. See:
The answer is always the same: Don't do this. Create an array instead and use the numbers as indices. This is faster, nicer, more flexible, easier to debug, to maintain, to expand and to read.
V = zeros(1, n); % For scalars
m = 7;
M = zeros(m, n); % For column vectors
C = cell(1, n); % For variables with different sizes
for k = 1:n
V(k) = k ^ 2;
M(:, k) = rand(m, 1);
C{k} = sprintf('%g', k);
end
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