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how can I save from MATLAB

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Ammy
Ammy on 26 Jan 2018
Closed: MATLAB Answer Bot on 20 Aug 2021
I have generated a large number of matrices in MATLAB , all these are appear on the MATLAB comand window as;
Matrix 1 =
1 2 3
2 3 1
3 1 2
Matrix 2 =
1 2 3
3 1 2
1 3 2
and so on , How can I save all these in one file, and how can I used the resulting matrices in my latter work?
  3 Comments
Domanic
Domanic on 26 Jan 2018
With your variables, you could save them using:
save('filename.mat','Matrix1','Matrix2',...)
However, as KSSV points out, it would be best to save these matrices as a single variable, or a cell array of matrices. If you're stuck with those matrix names, you can use the function 'eval' to automate saving.
Stephen23
Stephen23 on 26 Jan 2018
Edited: Stephen23 on 26 Jan 2018
"If you're stuck with those matrix names, you can use the function 'eval' to automate saving."
Why bother? It is much simpler to use save and a regular expression:
save('file.mat','-regexp','Matrix\d+')
eval is what beginners use to force themselves into writing slow, complex, buggy code:
The best solution though, as others have already noted, is to not use numbered variables.

Answers (1)

Daniele Defilippi
Daniele Defilippi on 26 Jan 2018
If the variables are inside the MATLAB workspace you can use the command
save('MyFileName.mat');
when you want to restore the variables you can use the command.
load('MyFileName.mat');

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