[R] Default value of the option initial in the ses function in the forecast package.

Ashim Kapoor ashimkapoor at gmail.com
Tue Oct 3 06:48:38 CEST 2017


Dear Peter,

Many thanks,
Ashim

On Mon, Oct 2, 2017 at 3:30 PM, peter dalgaard <pdalgd at gmail.com> wrote:

> The first one, i.e. "optimal"; check help for match.arg() for the idiom.
>
> -pd
>
>
> > On 2 Oct 2017, at 11:48 , Ashim Kapoor <ashimkapoor at gmail.com> wrote:
> >
> > Dear All,
> >
> > I am trying to use the function ses from the forecast package.
> >
> > From its help I have :
> >
> > Usage:
> >
> >     ses(y, h = 10, level = c(80, 95), fan = FALSE, initial = c("optimal",
> >       "simple"), alpha = NULL, lambda = NULL, biasadj = FALSE, x = y,
> ...)
> >
> > My query is that if I do not mention the initial value will its default
> > value be "optimal".
> >
> > A MWE would be  :
> >
> > library(fpp)
> > oildata <- window(oil,start=1996,end=2007)
> > fit3 <- ses(oildata, h=3)
> >
> > In the above is the default value of initial "optimal" or "simple" ?
> >
> > Note I have taken this example from https://www.otexts.org/fpp/7/1
> >
> > Best Regards,
> > Ashim
> >
> >       [[alternative HTML version deleted]]
> >
> > ______________________________________________
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> posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
>
> --
> Peter Dalgaard, Professor,
> Center for Statistics, Copenhagen Business School
> Solbjerg Plads 3, 2000 Frederiksberg, Denmark
> Phone: (+45)38153501
> Office: A 4.23
> Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com
>
>
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