how to make new variables and values in for loop

Question

Young Chan Jung 2019-6-17

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/467477-how-to-make-new-variables-and-values-in-for-loop

编辑： madhan ravi 2019-6-17

采纳的回答： Star Strider

I want to make and define variables with for loop like:

for i=1:3

something

Ai = ...

something

end

so that after running this, I have defined variables of Ai, or A1, A2, A3 in this case

I tried to search and found out there is something such as A{i} or saving values to arrays, but in the end I need to transform them again as the above and get separate defined variables...

Thank you.

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Stephen23 2019-6-17

编辑：Stephen23 2019-6-17

"I have defined variables of Ai, or A1, A2, A3 in this case"

Do NOT do this. The MATLAB documentation specifically recommends against dynamically accessing variable names, as do all experienced MATLAB users. Read this to know why:

https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

"I tried to search and found out there is something such as A{i} or saving values to arrays,"

This is exactly what you should do. Indexing is simple, neat, easy to debug, and very efficient (unlike what you are trying to do).

":..but in the end I need to transform them again as the above and get separate defined variables..."

I very much doubt that you "need" to do that. Please explain your usecase in more detail.