mauede at alice.it wrote:> I am trying to use the "kernel" function. To understand how it
works I tried out some of the examples.
> None of them works as shown in the following:
>
>> kernel("daniell", 50) #
> Error in kernel("daniell", 50) : unused argument(s) (50)
.... which works for me. Have you loaded some specific package? Which R
versioj is this? Your OS? Self-compiled R or some pre-compiled binary?
Uwe Ligges
>> kernel("daniell", 10) #
> Error in kernel("daniell", 10) : unused argument(s) (10)
>> kernel("daniell", c(3,3))
> Error in kernel("daniell", c(3, 3)) : unused argument(s) (c(3,
3))
>> kernel("fejer", 100, r=6)
> Error in kernel("fejer", 100, r = 6) : unused argument(s) (100, r
= 6)
>> kernel("daniell", c(11,7,3) )
> Error in kernel("daniell", c(11, 7, 3)) :
> unused argument(s) (c(11, 7, 3))
>
> My goal is to detrend a time series affected by non-linear trend. I do not
have clear ideas about the
> difference betweeen "detrending" and "smoothing". I
would appreciate some suggestions and/or literature references
> by people experienced about detrending and smoothing.
> I was told the there are two best methods about detrending: polynomial fit
on a sliding window and kernel smoothing.
> I keep being confused . I got the book by Hardle. Maybe you can advice some
other clarifying literature (possibly with
> examples).
> Thank you very much.
> Maura
>
>
>
>
>
>
> tutti i telefonini TIM!
>
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.