help with a simple error

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. The file names are matrix1.txt, matrix2.txt.....matrix100.txt.

I'm trying to import them all using

C = cell(100,1); 
for ii = 1:100 
C{ii} = importdata(['matrix' num2str(ii) '.txt']) ; 
end

but I'm getting an error

??? Error using ==> importdata at 123 
Unable to open file.

would anybody know why?

Sincere thanks

Answer 1

[Wayne King]

Are these files matrix1.txt, matrix2.txt, etc. located in a folder which is on the MATLAB path?

Use addpath, or pathtool, to add that folder to the MATLAB search path.

[John]

Hello,

Yes these files are in the current folder.

Do you mean this?

addpath('E:\matrices')

C = cell(100,1);

for ii = 1:100

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

end

Could you suggest another way of importing them?

Regards

John

[Wayne King]

Hi John, are these just numeric matrices with no text in them?

are you sure that matrix1.txt all the way to matrix100.txt exists in that folder

[John]

Hi Wayne

Oh my fault, I didn't have exactly 100 files in the folder.

Thank you for spotting that!

John