having trouble with changing Matrix name

5 次查看（过去 30 天）
Razieh
Razieh 2015-4-23
编辑： Stephen23 2019-6-19
I want to name my outputs A_10_1, A-10_2,..., A_10_n; A_20_1, A_20_2,...,A_m_n; Where output A_m_n was generated with variable m and it is nth replication result.
Please help me to write code thanks
  1 个评论
Stephen23
Stephen23 2015-4-23
编辑：Stephen23 2019-6-19
Your terminology is not clear because you are mixing the terms file and variable. Are you talking about a file of data that is saved on a hard-drive, or a variable (e.g. a matrix) that is inside MATLAB's workspace?

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Thorsten
Thorsten 2015-4-25
You can store matrices of different sizes in a cell array:
for m=1:Nm
for n=1:Nn
A{m,n} = myfunction(m,n);
end
end

更多回答（2 个）

Image Analyst
Image Analyst 2015-4-23
See the FAQ: http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F
In short, to create a filename from two integers, do this
for m = 1 : whateverM
for n = 1 : whateverN
filename = sprintf('A_%d_%d.dat', m, n);
end
end
  4 个评论
显示 2更早的评论
Image Analyst
Image Analyst 2015-4-24
As Guillaume, Stephen, and now me (now that I know you want to create matrices and not filenames like you said in the subject line) all say, this is a bad idea and we recommend you read the FAQ to learn why. It's better if you just use functions to process the same named variable, within a loop to handle the 16 different cases where the array has different values, OR use a larger array so that all of your 16 arrays can be in the same single array, and you just get to them by changing the index.
Razieh
Razieh 2015-4-25
ok. thanks Image Analyst for the suggestion. I try to learn that

请先登录，再进行评论。

Stephen23
Stephen23 2015-4-23
编辑：Stephen23 2019-6-19
  2 个评论
Jan
Jan 2015-4-25
@Razieh: Please follow the links Stephen has posted. The topic of numbered names of variables has been discussed thousands of times before and this is a severely bad method of beginners. The solution is easy: NEVER hide indices in the names of variables, but use arrays instead.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Variables 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