Dear Felipe,
maybe the data (which I can't see through the digest) do not have
variability, maybe something else.
Try sending me the data.frame, I'll see what happens.
Giovanni
------------------------------
Message: 72
Date: Thu, 16 Sep 2010 11:49:19 -0500
From: Luis Felipe Parra <felipe.pa...@quantil.com.co>
To: r-help@r-project.org
Subject: [R] Problems creating a Panel
Message-ID:
<aanlktimnvuq8jcu=vesa6s7gr9tqn1bi9tf0xu3ok...@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
Hello, I am trying to create a panel with the attached data frame. using
the
following code:
> PanelRio = DataRiopaila[which(duplicated(DataRiopaila$SEC_STE)==T),]
> PanelRio=plm.data(PanelRio,index=c("SEC_STE","FechaSiembra"))
series
Pluv3Meses,PluvMes4al10,Pluv2UltimosMeses,Rad3Meses,RadMes4al10,Rad2Ulti
mosMeses
are NA and have been removed
It tells me it removes couple of series because they are NA, and I don't
understand why because if I do:
> PanelRio = DataRiopaila[which(duplicated(DataRiopaila$SEC_STE)==T),]
> length(which(is.na(PanelRio[,"Pluv3Meses"])==T))
[1] 474
> nrow(PanelRio)
[1] 4129
which means there are still around 3500 entries which aren't NA. Does
anybody what can be going on?
Thank you
Felipe Parra
-------------------------------------------------------------------
Giovanni Millo
Research Dept.,
Assicurazioni Generali SpA
Via Machiavelli 4,
34132 Trieste (Italy)
tel. +39 040 671184
fax +39 040 671160
Ai sensi del D.Lgs. 196/2003 si precisa che le informazi...{{dropped:13}}
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