Re: [Gretl-users] X-12-Arima
On Fri, 10 Sep 2010, John C Frain wrote:
Page 2 of the X12 manual states "Observations must be equally
spaced
in time, and missing values are not allowed. As you say there are
circumstances in which -99999 can be used as an indicator of a missing
value. However this is not true in all cases. If I insert and
interior -99999 in Henrique's dataset I think that It is being
transferred from Gretl to X12 as a number and causing X12-ARIMA to
crash. For Henrique's data the basic X12-ARIMA specification
is...
Thanks, John, this is very helpful.
Allin