[Gretl-users] Season Plot

I have tried to install this package - but keep getting the error message - season_plot: dependency string_utils was not found Any suggestions where i might find it would be appreciated. Brian Brian J Revell Professor Emeritus Agricultural and Food Economics Harper Adams University Newport Shropshire TF10 8NB Tel 01952 815237 Tel: +44 1952 728153 Mbl +44 7976 538712 University: +44 1952 815235 alt: email: bjrevell(a)harper-adams.ac.uk