save variable with changing name

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Amy 2016-2-25

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/270069-save-variable-with-changing-name

编辑： Stephen23 2019-6-25

Hello Matlabers,

I have a very easy question, but I can't seem to figure it out. I want to do the same calculation hundreds of times and save the output with a variable name that changes with each loop. Specifically, I want to do the following:

z_1 = .5.*log((1+r_1)./(1-r_1)); and then save as z_1

z_2 = .5.*log((1+r_2)./(1-r_2)); and then save as z_2

z_3 = .5.*log((1+r_3)./(1-r_3)); and then save as z_3

and so on...

any help would be much appreciated, thanks!

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Amy 2016-2-25

Okay great thank you. I will use a cell array instead. So I'm going to use something like the following:

numArrays = 676;

a = cell(numArrays,1);

for n = 1:numArrays

A{n} = .5.*log((1+r_1)./(1-r_1));

end

I'm still not sure how to change the variable from r_1 to r_2 to r_3, etc. in each loop. sorry for the naive question!

Steven Lord 2016-2-25

在 MATLAB Online 中打开

Don't use r_1, r_2, etc. either.

numArrays = 677;
r = rand(1, numArrays); % Random data for demonstration purposes
z = 0.5*log((1+r)./(1-r));

This generates all the data at once; no loop, no variables named iteratively. Where in your code you would have used z_17 (for example) instead use z(17).

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