Getting the value of variable from its name

Question

Pushkar Dhekne 2021-6-4

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https://ww2.mathworks.cn/matlabcentral/answers/847750-getting-the-value-of-variable-from-its-name

评论： Stephen23 2023-11-2

I have variable name saved as a string in an array. I want to read the value of the variable into another array. Is there a function in matla which takes variable name as input and returns the value of that variable.

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Stephen23 2021-6-4

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

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Answer 1

Benjamin Kraus 2021-6-4

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https://ww2.mathworks.cn/matlabcentral/answers/847750-getting-the-value-of-variable-from-its-name#answer_716715

编辑：Benjamin Kraus 2021-6-4

在 MATLAB Online 中打开

eval will do this, but see the link posted by Stephen explaining all the reasons you should avoid using eval: https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

For example:

a = 1:10;
varName = 'a';
b = eval(varName);

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Stephen23 2023-11-2

"see the link posted by Stephen explaining all the reasons you should avoid using eval:"

Correction: "see the link by Stephen which explains the main reasons why you should avoid forcing meta-data (e.g. pseudo-indices, test parameter values, etc.) into variable names or fieldnames."

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