Permutations from two sets of files

HI, i am totally new to matlab i hope someone can help me achieving this. i have to text files, with a list of items ( long lists ), i want to read those lists in matlab, make a permuation between then, and save the result in new file.

exemple :

Answer 1

[per isakson]

With Matlab there are mostly many ways. Especially, there are many functions to read text files. Here is a straight forward function that answers your question. Watch out for the different kinds of parentheses.

    function cssm()
        fid = fopen( 'file1.txt' );
        cac = textscan( fid, '%f' );
        fclose( fid );
        num = cac{1};

        fid = fopen( 'file2.txt' );
        cac = textscan( fid, '%s' );
        fclose( fid );
        str = cac{1};

        fid = fopen( 'file3.txt', 'w' );
        for ii = 1 : length( num )
            for jj = 1 : length( str )
                fprintf( fid, '%1d - %1s\n', num(ii), str{jj} );
            end
        end   
        fclose( fid );    
    end

This code stored in an file with the name, &nbsp cssm.m, &nbsp shall be in the same folder as the data files.

[mounim]

Thank you for your help, that made a lot of sense.

[mounim]

one last question ... When i use you code on the exemple above, it works like a charm. but when i use my actual data. i doenst work. my data looks like so : VHxBxVVxPx255x98x is it because of the length of the data list or the actual format of the data ( strings and numbers )

[mounim]

i guess i figured it out .. changing %f to %20f

Answer 2

[Azzi Abdelmalek]

a={1;2;3;4}
b={'A';'B';'C'}
[ii,jj]=ndgrid(1:numel(a),1:numel(b))
out=cellfun(@(x,y)  [num2str(x) '-'  y ],a(ii(:)),b(jj(:)),'un',0)

[mounim]

Thanks for the answer, but how can i do that, by reading the files automaticly, and the poplating "a" and "b" .. i have large list, with more than 3000 items. it will be difficult to do it manually. that why i want to read a file and save it.

[Azzi Abdelmalek]

What part of the code is manual?

[mounim]

i am sorry, then i guess i didnt understand how it works. can you explain please ? i mean shouldnt i be able to read "a" from a file ?