List variables in m-file

2013 4 24
1 个回答
回答已采纳
3 次查看（30 天）

0 个投票

I would like to rename some variables in an m-file, and would like to automate this process. I have tried using regexprep, but ran into some problems. I noticed a feature in the newest versions of Matlab, where you can automatically rename variables. Is there a command line version of this functionality. Alternatively, what would be the best way of renaming the variables, without having to run the file?

2 个评论
显示 无 隐藏 无

Cedric
Cedric 2013-4-25
Do you know the name of these variables a priori, or is it something that has to be detected by the program?
Etienne Coetzee
Etienne Coetzee 2013-4-25
Yes, I have the names, but some variables are for instance N and NN, so I am not sure how to prevent NN from changing when I want to change N to AB for instance. NN will then become ABAB.

请先登录，再进行评论。

请先登录，再回答此问题。

 采纳的回答

Walter Roberson
Walter Roberson 2013-4-24

2 个投票

Example of replacing a variable in a string:
S = 'x^2 + 3*x*y + x1/x';
regexprep(S, '(?<![A-Za-z0-9_])x(?![A-Za-z0-9_])', 'YO')

3 个评论
显示 1更早的评论 隐藏 1更早的评论

Cedric
Cedric 2013-4-25
编辑：Cedric 2013-4-25
Is there a reason why you didn't use \w in the look-around? Was it just to make the pattern more explicit for the example?
Etienne Coetzee
Etienne Coetzee 2013-4-25
Hi Walter. That is exactly what I wanted. I have tried it, and it works. Thank you. That has made my day.
Walter Roberson
Walter Roberson 2013-4-25
\w would likely be a good idea. I was thinking at the time that it matched a slightly different set of characters than was needed for MATLAB identifiers, but you are right that it is the same.

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Whos 的更多信息

产品

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by