Naming variables according to the values of another variable

51 次查看（过去 30 天）
Mia Dier
Mia Dier 2021-5-25
编辑： Jan 2021-5-25
I have a variable
A=[1;2;5]
and I want to use the values of this variable in the name of the new variables I'm going to create: B_1, B_2 and B_5.
for k=A(1,1):A(3:1)
B_'k'= TreeBagger(.)
end
This code, however, doesn't work and I couldn't come up with a solution.
  1 个评论
Stephen23
Stephen23 2021-5-25
编辑：Stephen23 2021-5-25
Formcing meta-data into variable names is one way that beginners force themselves into writing slow, inefficient, complex code that is difficult to debug. Read this to know some of the reasons why:
https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval
You should store (meta-)data in variables (not in variable names) and use basic indexing, just like MATLAB was designed for.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Jan
Jan 2021-5-25
编辑：Jan 2021-5-25
Don't do this. Hiding indices in the names of variables is a bad programming pattern, which is avoided consequently by experienced programmers. See https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval
Use array and indices or a struct instead.
for k = 1:3
B(k).index = A(k);
B(k).data = TreeBagger(.)
end
By the way, A(1,1):A(3:1) might not do, what you expect. The 2nd argument is an empty vector. Maybe you mean:
for k = A.'

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Whos 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by