%SETFILES Set files (directory names) for datafile
%
%   A = SETFILES(A,DIRNAMES)
%
% INPUT
%   A         - Datafile
%   DIRNAMES  - Character array with directory (or file) names
%
% OUTPUT
%   A         - Datafile
%
% DESCRIPTION
% Set the filenames for a datafile. This constructs a new datafile,
% except for the PREPROC and POSTPROC fields.
%
% SEE ALSO (<a href="http://37steps.com/prtools">PRTools Guide</a>)
% DATAFILES