create matrix from string name

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Nihal Seegobin
Nihal Seegobin 2019-4-15
回答： madhan ravi 2019-4-15
I want to create multiple matrices but i do not want to name each one but instead make matlab initialise one with every loop iteration.
I created var = "a",i = i+1,and then var = "a" + i, which would give me "a1", and then "a2", and so on. i want to make n x n matrices called a1, and another called a2, and so on.Each matrix is a (2:end,2:end) version of the previous one.
  1 个评论
KSSV
KSSV 2019-4-15
YOu need not name each matrix........read about 3D matrices.
a = rand(2,2,2) ;
a(:,:,1) % a1
a(:,:,2) % a2

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回答（1 个）

madhan ravi
madhan ravi 2019-4-15
https://in.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval - use cell or a ND array. For example:
a=cell(4,1);
for k=1:4
a{k} = rand(2);
end

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