function tempDir2 = tempdir2%TEMPDIR2  Return temporary directory.%		DIR = TEMPDIR2 returns as a temporary directory the directory%		<TEMPDIR>/<USERNAME>@<HOSTNAME>/MATLAB. This directory is user- and%		host-specific and thus better suited in networks/clusters than the%		temporary directory returned by Matlab function TEMPDIR.%%		Markus Buehren%		Last modified 20.04.2008%%		See also TEMPDIR, GETUSERNAME, GETHOSTNAME.persistent tempDir2Persistentif isempty(tempDir2Persistent)  % build directory string  tempDir2 = tempdir;  tempDir2 = fullfile(tempDir2, [getusername '@' gethostname], 'MATLAB');  % if directory is not existing, try to create it  if ~exist(tempDir2, 'dir')    try      mkdir(tempDir2);    catch      error('Unable to create directory %s.', tempDir2);    end  end  % save string for next function call  tempDir2Persistent = tempDir2;else  % return string computed before  tempDir2 = tempDir2Persistent;end