AR(1) forecasting

[MattxLM]

Hi,

I have a database of carriers, airport and others variables as degree of an airport from 1999Q1 to 2013Q4.

What I do is estimate an AR(1) model for degree of the carrier "AA" on the airport "MIA" from 1999Q1 to 2010Q4
The equation is named eq_ar in my workfile attached.

When I try to dynamically forecast from 2011Q1 to 2013Q4 in order to compare the forecasting output with real values,it says " Unable to compute due to missing datas".
I have seen that some posts deal with this error but I did not really undestand what to do.

Thank you for your help

[startz]

Is your version of EViews up-to-date?

[EViews Gareth]

What exactly did you do? (Seemed to work fine for me)

[MattxLM]

Thanks for you quick replies.

I have selected the equation "eq_ar" which corresponds to an AR(1) for estimation until 2010 Q4 and selected "Forecast" and just changing the date of the sample as following :
2011q1 2013q4 if carrier="AA" and airport="MIA".

And then it says the error message "unable to compute due tomissing datas" but it creates me the variable degreef whatever.
So i checked the graph I wanted, and it is definitely not what I should have (see the attachement ...)

[EViews Gareth]

Check you version is up to date.

[MattxLM]

I am using eviews 9 and I cannot update my version because it is a license for university ...

When I try to update it says :
" This feature has been disabled by your administrator "

[MattxLM]

I finally managed to update eviews to the latest version.

I got a new error message, you can see it on the image.
I do not get it insofar as my workfile range is until 2013Q4 and I should not be outside my workfile range..

[EViews Gareth]

If you click ok on the error, does the forecast happen?

[MattxLM]

Yes, the forecast happens and I got this
(The forecasted value is a constant which corresponds to the constant of the ar(1) model)

[EViews Gareth]

Seems like it is working then.