A bug in the sort data menu entry:
Using version 1.6.6pre2 build date 10/21/2007 on Windows XP and the data
set Ramanathan data2-1: Selecting the menu entry Data > Sort data... to
sort by vsat ascending, nothing changes. The data set is not sorted.
However, by writing "dataset sortby vsat" in the gretl console the datset
is sorted correctly.
Best regards
Andreas