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Time-series split and cycle

To: s-news@wubios.wustl.edu
Subject: Time-series split and cycle
From: "David C Leeth" <cleeth@usgs.gov>
Date: Tue, 24 Aug 2004 12:53:04 -0400
Dear S users,

A confession, I am still trying to get my head around the new timeSeries
object class.  For a while I have used the boxplot command with split and
cycle to create monthly boxplots of rts--regular time series data  (similar
to  the example on page 423 of the 3rd edition of MASS).  I am trying to
use the new timeSeries class using the same algorithm, but get an error
message thus:

Problem in boxplot.default(split(Wl07H003.tS, cycle..: can't interpret
class "timeSeries" as an S Vers
ion 2 vector

A work around that I'm using is to convert the timeSeries data slot to an
rts object, but in the words of my Pascal professor of many years ago, "
your solution works, but isn't at all elegant Mr. Leeth".

So, in my search for a more "elegant" solution any hints would be helpful.

Chris

David C. Leeth
U.S. Geological Survey (WRD)
Atlanta, GA

P.S. ver 6.2, WinXP




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