Printing results to a file or two screen.

I have created a small program to find all combinations of cetain length possible with the four DNA bases (A,T,G,C) and then search inside a sequence to count the occurences of each combination.

I end up with two arrays, one containing the possible combinations and the other integer values of occurences.

For example for all possible triplets we get an array M<64x3 char> and the array C<1x64 double>.

My problem is, I don't know how to print the results in a file with two columns, one containing each combination as a string (for example "AT" or "CG") and the other column containing the appropriate C value (counts, for example "5").

Actually I would like to be able to use this array to print histograms etc.

I would appreciate any help. Thanks in advance.

Answer 1

[Pavel Gorodetsky]

i would use the fprintf function. first you have to open a file for writting and then simply loop your data and write each row to the file. the code would look something like this:

fid = fopen('output.txt', 'w');
for ii = size(M,1)
    fprintf(fid, '%s %d\r\n', M(ii, :), C(ii) );
end
fclose(fid)