[R] 2 simple doubts

[Joerg Maeder]

Hello Frederico

1) paste(strA,strB,....strX,sep='') or something else as seperator
(default: blank ' ')

2) tree(as.formula(paste(a,'~',b,'+',c)),data=DS1) could work

gruess

joerg


Frederico Zanqueta Poleto wrote:
> 
> Hello,
> 
> I'm just start learning R/S-Plus, so I think this 2 doubts is going to
> be too easy for you...
> 
> 1) I couldn't discover what is the command for a concatenation of 2
> variable strings.
> 
> 2) For example, if I have three variable strings, and each one has the
> name of a variable in a data matrix:
> a<-V1
> b<-V2
> c<-V3
> , is it possible to construct a command like this:
> tree(a~b+c,data=DS1)
> , that would do the job of tree(V1~V2+V3,data=DS1) ?
> I know that how I've written here doesn't work, but I hope I've
> explained well what I'd like to do.
> 
> Thanks.
> 
> Sincerely,
> --
> Frederico Zanqueta Poleto
> fred at poleto.com - ICQ# 4129787
> 
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-- 
Joerg Maeder    .:|:||:..:.||.::   maeder at atmos.umnw.ethz.ch
Tel: +41 1 633 36 25   .:|:||:..:.||.::   
http://www.iac.ethz.ch/staff/maeder
PhD student at INSTITUTE FOR ATMOSPHERIC AND CLIMATE SCIENCE (IACETH)
ETH ZÜRICH Switzerland
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