[Gretl-devel] firstobs() and lastobs()

I'm thinking it might be good to revise the functions firstobs() and lastobs() so they restrict their checks for non-missing values to the current sample range (right now they scan the entire dataset). This would be backward incompatible, but I'd be surprised if it would cause much trouble. Although it's so stated in the manual, I think it's unintuitive for function writers that firstobs() and lastobs() can give you observation indices that are outside of the sample passed by the caller, and therefore inaccessible. Any support/objections? Allin