Simple For Loop Question about Creating Variables

Question

Harry 2017-3-17

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/330452-simple-for-loop-question-about-creating-variables

编辑： Star Strider 2017-3-17

Hi,

I would like to work with quite a big amount of variables and would like to know if there is a shortcut to reduce the amount of lines in my code.

I tried using a for loop and replaced the 1,2,3,4,5 etc with i and then run it for the corresponding amount of iterations (in this case i= 1:5), but it didn't work out.

Here is some small example of the issue:

A1 = [100;150];
A2 = [200;250];
A3 = [300;350];
A4 = [400;450];
A5 = [500;550];
A1x = mean(A1);
A2x = mean(A2);
A3x = mean(A3);
A4x = mean(A4);
A5x = mean(A5);

Particularly in the second part of the code, I would like to change 1 to 5 to a more simplified way.

Thanks

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Answer 1

Star Strider 2017-3-17

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/330452-simple-for-loop-question-about-creating-variables#answer_259237

编辑：Star Strider 2017-3-17

在 MATLAB Online 中打开

Create a matrix from the ‘A’ vectors, then take the mean of the columns:

A1 = [100;150];
A2 = [200;250];
A3 = [300;350];
A4 = [400;450];
A5 = [500;550];
N = 5;
for k1 = 1:N
    A(:,k1) = eval(sprintf('A%d',k1));
end
Ax = mean(A)