On Wed, 3 Aug 2016, Artur T. wrote:
 Wow, that's a great feature, Allin and Jack! Sounds really
interesting
 to have MIDAS implemented in gretl. Thank you for your effort! 
Well, surprisingly enough, that's just the sort of reaction I was 
hoping to see ;-)  Thank you, Artur!
I've recently found myself in quite extensive email discussion with 
Eric Ghysels and the authors of the midasr R package. All very civil 
and productive, sorting out some ambiguities with regard to 
appropriate conventions when dealing with mixed-frequency data. 
Hopefully this will contribute to a good gretl implementation of 
MIDAS in the next release.
Allin