Thanks. Maybe I should change to this approach. Barry On Nov 1, 2010, at 6:42 PM, Jed Brown wrote: > Barry, this may be relevant. > > http://stackoverflow.com/questions/2748302/what-is-the-closest-thing-matlab-has-to-namespaces > > especially (from the first answer) > > http://www.mathworks.com/help/techdoc/matlab_oop/brfynt_-1.html > > > Jed