write an array (or other data) to a file in matlab

to write a file in matlab, you first need to get a file id:

>> fid = fopen('nameofyourfile.txt','w')

(the 'w' means that this file will completely overwrite whatever file shares the same filename)

to write to the file, use the fprint command:

>> fprintf(fid,%d,5);

this puts the number 5 into nameofyourfile.txt.

to prevent the file handling gnomes from attacking you in the night, be sure to close the file when you're finished writing all of your data:

>> fclose(fid);