Creating Variable Names from Strings

Question

Clemens 2024-1-20

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2072281-creating-variable-names-from-strings

回答： Taylor 2024-1-23

采纳的回答： Taylor

在 MATLAB Online 中打开

Is there a way to create a Variable with the name of a String?

I would like to do something like this:

name = "VariableName"    % String containing the name I want to give it
Variable(name) = 35

And then have a Variable called Variable Name, that contains data

2 个评论
显示无隐藏无

Dyuman Joshi 2024-1-20

That is not a good idea, explained in length (,depth and breadth) here - TUTORIAL: Why Variables Should Not Be Named Dynamically (eval)

Why do you want to do that?

Stephen23 2024-1-20

编辑：Stephen23 2024-1-20

"Is there a way to create a Variable with the name of a String?"

Yes, if you really want to force yourself into writing slow, complex, inefficient, obfuscated code that is fragile and hard to debug:

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

However in almost all threads on this forum (and others) related to this topic, creating such variable names dynamically was not a good approach and was easily replaced by much better data design, leading to much better code.

Usually some basic indexing is quite sufficient.

Your question is a good example of this:

https://xyproblem.info/

https://en.wikipedia.org/wiki/XY_problem

The most important question is: how are you planning on processing this data? What is the actual goal that you are trying to achieve?

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Taylor 2024-1-23

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2072281-creating-variable-names-from-strings#answer_1395751

As other users have stated, it is generally not advisable to dynamically generate variable names from a string using eval. However, it is possible to do this with structure field names specifically.

https://www.mathworks.com/help/matlab/matlab_prog/generate-field-names-from-variables.html