MATLAB: How to loop round and upload a different file name each time using csvread

csvreadfor loop

I have to load in a set number of CSV files and do some analysis on them. I think I have to use num2str but I cant get it working. The file names are called GroupC01, GroupC02, …., GroupCn. I realise once I go over 10 ill have to change the upload to change both units rather than just the one, I'm planning on putting a new for loop in for when i goes over 10. Any ideas on how to upload the files in a loop? Im also wondering if theres a way so I don't have to use another for loop after the file number goes over 10? Ive pasted my code below, any ideas would be much appreciated as I'm pretty new to this software!

for i=1:setnumber

data = csvread(['groupC0'num2str(i)'.CSV'],6,0);

Best Answer

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

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MATLAB: Importing multiple text files

See the FAQ

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

Note reading the filenames from an array is essentially the same as processing a dir() list or the file exchange "pick of the week" linked to there is a higher-level alternative if the idea is to do the same thing to all files.

MATLAB: How to import CSV files using csvread

Looks like should work presuming your filenames are ok but I'd do it slightly differently.

Try sotoo...

d=dir('*.csv');   % return the list of csv files
for i=1:length(d)
  m{i}=csvread(d(i).name);   % put into cell array
end

Worked here for a few in my working directory.

Note that the files need to be consistent with what content csvread can handle which is numeric array data only.

What specific problem did you encounter?

Best Answer

Related Solutions

MATLAB: Importing multiple text files

MATLAB: How to import CSV files using csvread

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