Am 24.01.2017 um 12:37 schrieb Artur T.:
 Dear all,
 I spent quite some time on this issue now but still can't figure out
 what causes the problem. I wrote two versions of a function for
 conducting a rolling DYNAMIC forecast analysis. I attached the script. 
At this point it might be a good idea to also post your output and the 
actual error message, instead of "doesn't work".
Apart from that, from the beginning it has felt strange that one of 
--dynamic or --rolling would work and the other wouldn't. So I wouldn't 
be surprised if there is a gretl bug lurking somewhere here.
cheers,
sven