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Asked by John
on 14 Feb 2012

Hello there,

I was hoping that somebody could perhaps help me out with a problem that I have. I'm only learning how to use matlab.

I have 100 4x4 matrices in .txt files in a folder.

How could I import them and create a structure with 100 entries and in each entry there would be one matrix.

The reason I ask is because I'm trying to get the average of these matrices and this post provides a solution if the matrices are in this format.

http://www.mathworks.com/matlabcentral/newsreader/view_thread/292234

Thank you for your help

Regards

John

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Answer by Sean de Wolski
on 14 Feb 2012

FAQ:How to process a sequence of files

Also note, that if they're all the same size, you could stack them along the third dimension and then take the `mean` of the first and second dimension which would leave you with each matrice's mean.

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John
on 15 Feb 2012

Hi again,

Honestly I haven't been able to get it to work

This is the code I'm using

C = cell(100,1);

for ii = 1:100

C{ii} = importdata(['matrix' num2str(ii) '.txt']) ;

end

but I'm getting this error

??? Error using ==> importdata at 123

Unable to open file.

The files are just text files each containing a 4x4 matrix

Could you offer any further suggestions?

Thank you

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