[R] factor to numeric (no subject)

[Petr Pikal]

Hi

all culumns which are used for discrimination (in your case 3) are 
factor. If you want to change them to numeric you has to use

as.numeric(as.character(x[,3]))

I believe it is in FAQ.

HTH
Petr

Please use sensible subject.


On 12 Sep 2006 at 14:49, Anders Eklund wrote:

Date sent:      	Tue, 12 Sep 2006 14:49:18 +0200 (CEST)
From:           	"Anders Eklund" <aeklund at kth.se>
To:             	"r-help at lists.R-project.org" <r-help at stat.math.ethz.ch>
Subject:        	[R] (no subject)

> Hi,
> 
> I have a problem with aggregate.
> 
> x <- aggregate(t1,list(t2,t3,t4), mean)
> 
> z<-x[,3]
> 
> I want z to be a vector but it is a factor.
> 
> I've tried to use as.vector(z,mode="numeric") but then the numbers get
> scrambeled.
> 
> Any help is appriciated
> 
> /anders
> 
> ______________________________________________
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Petr Pikal
petr.pikal at precheza.cz