[R] A model for possibly periodic data with varying amplitude [repost, much edited]
A.Robinson at ms.unimelb.edu.au
Wed Aug 16 11:14:51 CEST 2006
Thanks for your response.
No, I haven't - I just looked and didn't see anything that looked
suitable for 12 data points. Can you be more precise?
On Wed, Aug 16, 2006 at 06:43:02AM +0000, Dieter Menne wrote:
> Andrew Robinson <A.Robinson <at> ms.unimelb.edu.au> writes:
> > I have up to 12 measures of a protein for each of 6 patients, taken
> > every two or three days. The pattern of the protein looks periodic,
> > but the height of the peaks is highly variable. I'm testing for
> > periodicity using a Monte Carlo simulation envelope approach applied
> > to a cumulative periodogram. Now I want to predict the location of
> > the peaks in time. Of course, the peaks might be occurring on
> > unmeasured days.
> Have you checked one of the methods in Chapter 13. of MASS to obtain a smoothed
> R-help at stat.math.ethz.ch mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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