I've been fighting with matlab for 2 days now and got some results (finally): function [t]=t_from_plw(fullfilename,info) %function =u_from_plw(fullfilename,info) if nargout<1|nargout>1;error('PLW2ML needs only one [t]');end if nargin==0;[fn,pn]=uigetfile('*.*','Open a measurement file');fullfilename...