[R] Clustering

[Albyn Jones]

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
> 
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-- 
Albyn Jones
Reed College
jones at reed.edu