[R] replacement of dataframe

[Steve Miller]

Or simply: 

sam <- factor(sample(1:3,100,replace=T))
sam <- factor(sam, labels=c("0-10","10-20","20-30"))

Steve Miller


-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Petr Pikal
Sent: Wednesday, May 17, 2006 7:19 AM
To: orkun; r-help at stat.math.ethz.ch
Subject: Re: [R] replacement of dataframe

Hi

On 17 May 2006 at 14:51, orkun wrote:

Date sent:      	Wed, 17 May 2006 14:51:43 +0300
From:           	orkun <temiz at deprem.gov.tr>
To:             	r-help at stat.math.ethz.ch
Subject:        	[R] replacement of dataframe

> hello
> 
> how can I replace dataframe data with another data ?
> something like:
> 
>  > str(dpr2$eg)
>  Factor w/ 8 levels "1","2","3","4",..:
> 
> I want to replace  "1" with "0-10"

Replace levels attribute of a factor

?levels

x<-factor(sample(1:8,100, replace=T))
x
   [1] 4 6 4 3 7 2 6 1 2 2 2 1 6 8 7 7 4 4 7 5 6 3 3 8 6 2 2 4 8 5 8 
6 3 4 2 1 6 1 4 6 8 4 4 2 7 4 5 2 2 5 5 1 1 6 8 5 5 5 8 5 6 5 2 3 6
  [66] 4 2 6 1 7 5 5 3 4 5 2 5 1 3 2 3 8 4 7 8 4 1 3 6 3 6 7 7 4 4 8 
6 6 5 8
 Levels: 1 2 3 4 5 6 7 8
levels(x)
 [1] "1" "2" "3" "4" "5" "6" "7" "8"
 levels(x)[1]<-"0-10"

HTH
Petr



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Petr Pikal
petr.pikal at precheza.cz

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