I have worked with seismic data measured at 100hz, and had no trouble locating events in "long" records (several times the size of your dataset). 20 minutes is high frequency? what kind of waves are these? what is the wavelength? some details would help.
albyn On Thu, Oct 28, 2010 at 05:00:10AM -0700, dpender wrote: > > I am looking to use R in order to determine the number of extreme events for > a high frequency (20 minutes) dataset of wave heights that spans 25 years > (657,432) data points. > > I require the number, spacing and duration of the extreme events as an > output. > > I have briefly used the clusters function in evd package. > > Can anyone suggest a more appropriate package to use for such a large > dataset? > > Thanks, > > Doug > > -- > View this message in context: > http://r.789695.n4.nabble.com/Clustering-tp3017056p3017056.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. > -- Albyn Jones Reed College jo...@reed.edu ______________________________________________ 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.
