Extraction of individual matrix from cell array

25 次查看（过去 30 天）
Praveen Kumar Ramani
编辑： Guillaume 2019-2-1
I want to extract all the matrix in cell array as individual matrix in my workspace
MT1=Microtrips{1,1}
MT2=Microtrips{1,2}......
MTn=Microtrips{1,n}
Plz find attached mat file
help me out with the code
  4 个评论
显示 2更早的评论
Stephen23
Stephen23 2019-2-1
编辑：Stephen23 2019-2-1
@Praveen Kumar Ramani: both of those will be much simpler with indexing. Do you have any relevant reason why you need to force yourself into writing slow, complex, buggy code?
Guillaume
Guillaume 2019-2-1
编辑：Guillaume 2019-2-1
Gah! You've already asked this question, been told not to do that and shown how to use your cell array efficiently. So wy do you persist?
Of course, now that you've been shown a way to do it you've accepted it. Except as you've been told repeatedly, it makes your life harder not easier. Sure enough, as predicted, your next question is how do I use all these variables that I've pointless created. Well, you can't easily because you've done exactly what we told you not to do.
If you don't listen to our advice why should we bother answering you.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（2 个）

KSSV
KSSV 2019-2-1
编辑：KSSV 2019-2-1
Praveen Kumar Ramani it is a bad idea to save each cell into individual matrix.....infact you need not to do it. It is waste of memory and waste of time. Already you have your information in hand in a proper and neat way. You can extract any value you want using :
for i = 1:length(Microtrips)
iwant = Microtrips{i}
end
  4 个评论
显示 2更早的评论
KSSV
KSSV 2019-2-1
YOu have that already in hand....
for i = 1:length(Microtrips)
Microtrips{i}
end

请先登录，再进行评论。

Mundrathi Venugopal
After loading the mat file,I guess you would probably wanna do this.
for i=1:numel(Microtrips),eval(['MT' num2str(x) ' = Microtrips{' num2str(x) '};']);end
However, Many common uses of the eval function are less efficient and are more difficult to read and debug than other MATLAB functions and language constructs.
  2 个评论
Stephen23
Stephen23 2019-2-1
"...I guess you would probably wanna do this."
Or you could read the MATLAB documentation, which states "A frequent use of the eval function is to create sets of variables such as A1, A2, ..., An, but this approach does not use the array processing power of MATLAB and is not recommended. The preferred method is to store related data in a single array".
Good luck with your pointlessly slow, pointlessly complex code!

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Logical 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