[R] Automate concatenation?

[Dimitris Rizopoulos]

you need get(), look also at FAQ 7.21

a1 <- 1:3
a2 <- 4:5
a3 <- 6:10
a4 <- 11:20
a5 <- 21:25
#####################
lapply(paste("a", 1:5, sep = ""), get)

I hope it helps.

Best,
Dimitris

----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://med.kuleuven.be/biostat/
     http://www.student.kuleuven.be/~m0390867/dimitris.htm


----- Original Message ----- 
From: "Robert Lundqvist" <Robert.Lundqvist at ltu.se>
To: <r-help at stat.math.ethz.ch>
Sent: Tuesday, May 30, 2006 2:07 PM
Subject: [R] Automate concatenation?


>I have this typical problem of joining a number of vectors with 
>similar
> names - a1, a2,..., a10 - which should be concatenated into one. 
> Using
> c(a1,a2,a3,a4,a5,a6,a,a8,a9,a10) naturally works, but I would like 
> to do
> it with less manual input. My attempts to use paste() gives a vector 
> of
> the vector names, see below. The question is how to do the the
> concatenation? Any suggestions?
>
> paste("a",1:10,sep="")
>
> Robert
>
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