[R] Moving from Splus to R: irregular and regular time series

From: Isabelle BRAUD <isabelle.braud_at_cemagref.fr>
Date: Thu, 17 Apr 2008 18:05:47 +0200


Dear R developpers,

I am a user of Splus since many years and I have developped lots of functions to plot graph of data and model results of irregular or regular times series.

In Splus regular times series are created using the rts function and irregular time series using the its functions. In both cases, times is given as a numeric vector.

There is no problem in plotting a regular and an irregular time series on the same graphs using the ts.plot function.

I am now trying to move to R, as it is a free software, so that it is very easy to install it for students.

However, I have problems in finding the functions in R which would enable me to do the same type of graphs as before.

I have downloaded the its and tseries packages, but in tseries time is numeric and in its time is provided as POSIXct or lt objects. I have the filling that both packages have been developped separately and I don't see how I could specify time to be able to plot regular and irregurlar time series on the same graph --- if it is possible in R--.

Thanks in advance for your answer

Best regards

Isabelle

-- 
Isabelle BRAUD
Cemagref
UnitÚ de recherche Hydrologie-Hydraulique
3bis quai Chauveau
CP 220
69336 Lyon CÚdex 9
Tel: 04 72 20 87 78
Fax: 04 78 47 78 75
E-mail: isabelle.braud_at_cemagref.fr

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Received on Thu 17 Apr 2008 - 16:16:07 GMT

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