What happens if you execute this?
clc,type newplotwrapper
I'm not sure I'm allowed to share the contents of this file, but it should be a function with this structure:
function ouput=newplotwrapper(varargin)
%comments and copyright statements
%a line of code involving groot
%another line of code
%a comment followed by a line of code wrapped in an if-statement
If running the type command doesn't return this, something is wrong with this file. The only way I know to repair such a file is by reinstalling Matlab or restoring it from a backup (or if you get someone to share it with you).
