[R] Problems creating a Panel

[Millo Giovanni]

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.parra at quantil.com.co>
To: r-help at r-project.org
Subject: [R] Problems creating a Panel
Message-ID:
	<AANLkTimNvuq8jCu=vESA6s7Gr9TqN1Bi9Tf0xU3okib0 at 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}}