On Mon, Apr 9, 2012 at 9:27 AM, Bazman76 <h_a_patie...@hotmail.com> wrote: > Yes I agree, there may be something pathalogical in the way at least one of > the models handles the data. That's why I was trying to get a better handle > on how the two functions spec.prgm() and spec.ar() work. > > The data has been processed by a wavelet analysis, so what you are seeing as > the "raw" data is in fact the level1 details from the wavelet anlaysis. > > In theory this should only have high frequency components, that was why I am > so surpirsed to see such strong components at low frequencies. > > That is not a R quesiton per se, but surely how spec.prgm() and spec.ar() > work is?
Not necessarily, if they are e.g. C or Fortran programs merely called by R. Indeed, even if written in R, if the algorithms are the issue, then that is essentially a statistics/numerical analysis matter, not an R programming one. -- Bert > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/Difference-between-spec-pgram-spec-ar-tp4541358p4543191.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@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. -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ R-help@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.