executing a function in multiple directories

Question

Baba 2011-11-10

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https://ww2.mathworks.cn/matlabcentral/answers/20826-executing-a-function-in-multiple-directories

I have a function which i would like to execute in multiple directories. Because it takes a long time to finish executing in each directory I'd like to automate this to run overnight.

Please point me in the right direction.

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Sven 2011-11-10

Do you mean that you want yourfunction() to execute first on "c:/directory1", then "c:/directory2", then "c:/directory3", etc?

If so, I think you can write a short script that *calls* yourfunction() from different directories. For example:

cd 'c:/directory2'

yourfunction()

... etc.

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Answer 1

Fangjun Jiang 2011-11-10

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在 MATLAB Online 中打开

That is probably not the best word describing your need. Based on your previous questions, I guess you want to run a program. The program searches a folder for some file and then do processing on these files. You need to run the program searching multiple folders.

If you design your function in a way that the full path of the folder is an input argument, you could easily wrap this function in a for-loop to process lots of folders overnight. You could manually specify all the folders, or you can use dir() to get all the folders.

%%specify folder
Folder={'c:\MyFolder\F1';'c:\MyFolder\F2';'c:\MyFolder\F3'};
for k=1:length(Folder)
  MyPlot(Folder{k});
end
%%or find the folder
ParentFolder='c:\MyFolder';
AllFile=dir(fullfile(ParentFolder,'F*'));
FolderOnly=AllFile([AllFile.isdir]);
for k=1:length(FolderOnly)
  MyPlot(fullfile(ParentFolder,FolderOnly(k).name));
end