Fellow gretl users,
Artur Tarassow recently drew my attention to a minor bug in the roc (receiver operating characteristics) function package that I wrote a while ago. An error was generated when only 2 predicted series or roc curves were being compared. I’ve now fixed that, and uploaded a new version (1.01) to the gretl server. Please update your installations accordingly.
Thanks for spotting this, Artur!