Hello, [5956] 10242.793600 10233.872700 10229.265400 10230.835200 10230.715500 [5961] 10233.706500 10231.821200 10235.511800 10232.515900 10240.365800 [5966] 10244.216100 10252.208800 10249.710600 10249.591500 10258.640800 [5971] 10263.172300 10263.327800 10271.161200 10268.512200 10268.465800 [5976] 10272.819000 10273.321700 10278.570500 10265.448300 10278.325400 [5981] 10274.210000 10281.323700 10274.569600 10276.431600 10279.039900 [5986] 10279.232600 10276.020600 10271.650200 10267.213500 10262.682000 [5991] 10261.586500 10253.623600 10243.466400 10245.071800 10242.889200 [5996] 10241.417900 10240.785600 10234.565600 10236.755200 10229.893600 [6001] 10225.274200
There is a sample from the dataset (which happens to be quite large, a subset of energy release values from fusion reactions). > HoltWinters(x) Error in decompose(ts(x[1L:wind], start = start(x), frequency = f), seasonal) : time series has no or less than 2 periods Thanks. Giovanni Petris wrote: > > > Please do read the posting guides and give us a reproducible > example. We don't know what the errors you get from HoltWinters > are. I guess we need to see the data you are using etc. > > Giovanni Petris > >> Date: Thu, 06 Aug 2009 11:33:58 -0700 (PDT) >> From: voidobscura <nshah...@gmail.com> >> Sender: r-help-boun...@r-project.org >> Precedence: list >> >> >> I have a set of data (in a matrix). I spliced a column out and parsed it >> as.ts (time series). I then plotted the time series but I found that it >> was >> very noisy. I wanted to smooth it out. However, I am having some >> problems >> smoothing and plotting the smoothed version. >> >> > A <- as.ts(read.table(choose.files())) >> > x <- as.ts(A[,10]) >> > plot(x) >> > > plot(smooth(x)) >> >> plot(smooth(x)) looks exactly like plot(x). Also, >> >> > StructTS(x) >> Error in optim(init[mask], getLike, method = "L-BFGS-B", lower = rep(0, >> : >> L-BFGS-B needs finite values of 'fn' >> >> The HoltWinters smoothing or the Kalman smoothing don't work either for >> various errors... I'm not quite sure what's wrong. >> >> Thanks. >> -- >> View this message in context: >> http://www.nabble.com/Time-Series-smoothing-tp24852054p24852054.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. >> >> > > ______________________________________________ > 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. > > -- View this message in context: http://www.nabble.com/Time-Series-smoothing-tp24852054p24855346.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.
