Hehe... sorry, Nick! This is a public apology for misspelling your last
name. I only realized I had written "Fox" after I read your e-mail. When
I was writing that e-mail I was listening to the Mexican news and they
were talking about Mexico's president, Vicente Fox. Heheh, sorry again!
And thank you for the suggestion.
Adrian
> -----Original Message-----
> From: Nick Cox [mailto:[email protected]]
> Sent: Sunday, March 07, 2004 11:55 AM
> To: [email protected]
> Subject: st: Re: mvsumm
>
>
> As for -mvsumm-, I would take the matter up
> with the authors Chris Baum and Nick Fox.
>
> But looking at the code and the help makes
> me think that the answer is No, so Scott's
> solution is the one to follow; unless you
> copy -mvsumm- and make it behave the way
> you want.
>
> Nick
> [email protected]
>
> Scott Merryman
>
> > -tssmooth ma- gives missing obersvations a zero weight in
> > calculating the moving
> > average. This would seem to give you what you want.
> >
> > Example:
> >
> > . tsset var1
> > time variable: var1, 1990 to 2003
> >
> > . tssmooth ma ma2= var2, w(4 1)
> > The smoother applied was
> > (1/5)*[x(t-4) + x(t-3) + x(t-2) + x(t-1) + 1*x(t)]; x(t)= var2
> >
> > . l
> >
> > +--------------------+
> > | var1 var2 ma2 |
> > |--------------------|
> > 1. | 1990 . . |
> > 2. | 1991 . . |
> > 3. | 1992 3 3 |
> > 4. | 1993 4 3.5 |
> > 5. | 1994 5 4 |
> > |--------------------|
> > 6. | 1995 5 4.25 |
> > 7. | 1996 4 4.2 |
> > 8. | 1997 6 4.8 |
> > 9. | 1998 5 5 |
> > 10. | 1999 3 4.6 |
> > |--------------------|
> > 11. | 2000 4 4.4 |
> > 12. | 2001 5 4.6 |
> > 13. | 2002 6 4.6 |
> > 14. | 2003 . 4.5 |
> > +--------------------+
> >
> de la Garza, Adrian
>
> > > I am using Chris Baum's and Nick Fox's -mvsumm- and I'd
> > like to know if
> > > there is a way to account for averages (or any other desc
> > stats) when
> > > there are missing observations (e.g., the way -collapse-
> > accounts for
> > > them). What I mean is the following:
> > >
> > > 1990 .
> > > 1991 .
> > > 1992 3
> > > 1993 4
> > > 1994 5
> > > 1995 5
> > > 1996 4
> > > 1997 6
> > > 1998 5
> > > 1999 3
> > > 2000 4
> > > 2001 5
> > > 2002 6
> > > 2003 .
> > >
> > > If I use -mvsumm- to generate 5-year moving averages, I'd
> like it to
> > > even give me a number in year 1994 (when there are already 5
> > > observations to compute the average, even though 2 are
> > missing--so the
> > > generated number would be the average of 3, 4, and 5) and
> > also in 2003
> > > (which would be the average of 3, 4, 5, and 6). Is this possible?
>
> *
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>
*
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