Hi,

I ran the installer x13as_install-64.exe from the page http://gretl.sourceforge.net/win32/ to do some seasonal adjustment, but the X-12 ARIMA Analysis field in the Variables menu remained grayed. I installed the  gretl 2021b version. This did not work either. I then installed the older version x13as_install-64.exe The problem remained. How can I activate seasonal adjustment in the Windows 64 Bit GUI?

Thanks

Ekkehart