Thanks, but  unfortunately, it doesn't work either: "data error"
Artur
On 27.02.2015 10:02, Sven Schreiber
 Working with panel dataset restrictions my experience is that right
 after the restrictions I often have to tell gretl again how the dataset
 is structured, with something like
 'setobs unitindex timeindex --panel-vars'
 Perhaps worth a try.
 good luck,
 sven