From cottrell@wfu.edu Fri Feb 12 13:28:16 2010
From: Allin Cottrell <cottrell@wfu.edu>
To: gretl-devel@gretlml.univpm.it
Subject: Re: [Gretl-devel] ema, obs and optional parameter
Date: Fri, 12 Feb 2010 13:28:15 -0500
Message-ID: <Pine.A41.4.58.1002121325410.3104998@f1n11.sp2net.wfu.edu>
In-Reply-To: 1265998710.2304.41.camel@U001082.ehu.es
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On Fri, 12 Feb 2010, Ignacio Diaz-Emparanza wrote:

> El vie, 12-02-2010 a las 12:47 -0500, Allin Cottrell escribió:
> > Hmm, what does the dataset look like? The following works
> > correctly here:
> >
> > <script>
> > open data3-6
> > series y = Ct
> > series s1 = y[1]
> > scalar d = 0.5
> > s1 = (obs=1) ? y[1] : d*y+ (1-d)*s1(-1)
> > print y s1 -o
> > </script>
>
> Oh! you got it by accident. Try this other initial value for s1:
>
> <script>
> open data3-6
> series y = Ct
> series s1 = 0
> scalar d = 0.5
> s1 = (obs=1) ? y[1] : d*y+ (1-d)*s1(-1)
> print y s1 -o
> </script>

The output still looks OK to me, though maybe I'm missing
something. What output are you getting?

Allin.


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