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moving average

Posted: Thu Nov 06, 2008 3:33 pm
by skit
Help to learn more about moving average. Who knows as this method on EViews is realised? If can lay out a source code or algorithm.

P.S. The information only to EViews, how the method works in other programs I know.

Re: moving average

Posted: Thu Nov 06, 2008 4:26 pm
by EViews Gareth
Are you talking about MA estimation (as in ARMA models), or the @MOVAV/@MAV functions?

Re: moving average

Posted: Fri Nov 07, 2008 5:06 am
by skit
@MOVAV/@MAV functions

Re: moving average

Posted: Fri Nov 07, 2008 8:31 am
by EViews Gareth
ok, I'm not quite sure I understand what you are asking then, but the @movav function is quite simply the average of the values of a series over the current and previous time periods (or observations). i.e.

Code: Select all

@movav(x,3) = (X+X(–1)+X(–2))/ 3

Re: moving average

Posted: Tue Aug 16, 2016 9:37 am
by AngieL
Hi,

I am trying to do the moving average but this message shows up :
@MOVAV is an illegal or reserved name.

Why is this happening?

Re: moving average

Posted: Tue Aug 16, 2016 9:44 am
by EViews Gareth
Hard to know what you're doing wrong without knowing what you're doing.

Re: moving average

Posted: Tue Aug 16, 2016 10:19 am
by AngieL
I copy pasted the formula mentioned and this is what I get the attached.

Thanks,
Angie

Re: moving average

Posted: Tue Aug 16, 2016 10:55 am
by EViews Gareth
What are you trying to do with the moving average?

Re: moving average

Posted: Tue Aug 16, 2016 11:08 am
by AngieL
It is mentioned in one of the papers that in order to make the Random Effects legit (to pass the Hausman test) I need the averages of the variables that is how they did it and I am trying to do the same, but it is not working. This is the paper : https://www.ecb.europa.eu/pub/pdf/scpwp ... ddd523a402

Could you please help it would be so much appreciated?

Thank you,
Angie

Re: moving average

Posted: Tue Aug 16, 2016 11:17 am
by EViews Gareth
If you're trying to use the moving average as a regressor, then include it as a regressor.

Re: moving average

Posted: Tue Aug 16, 2016 11:20 am
by AngieL
No I want to have the moving average for every variable and then use them as regressors. Is that do-able?

Re: moving average

Posted: Tue Aug 16, 2016 11:33 am
by EViews Gareth
Yes, just add the moving average of each variable as a regressor.

Re: moving average

Posted: Tue Aug 16, 2016 11:34 am
by AngieL
But why do I get that error message

Re: moving average

Posted: Tue Aug 16, 2016 11:38 am
by EViews Gareth
Because you aren't including it as a regressor. There's no equation to be seen.

Re: moving average

Posted: Tue Aug 16, 2016 11:46 am
by AngieL
So how do I do that?
Please help!