[R] factor

Rolf Turner r.turner at auckland.ac.nz
Wed Feb 4 04:25:49 CET 2009


On 4/02/2009, at 2:09 PM, kayj wrote:

>
> I am looking into change the numeric order in the level of the factor
>
>> x<-c("A","B","C")
>> fx<-factor(x)
>> fx
> [1] A B C
> Levels: A B C
>> factor(x)
> [1] A B C
> Levels: A B C
>> as.numeric(fx)
> [1] 1 2 3
>
> I want to change the order of the numeric into 3 corresponds to “A”  
> level, 2
> corresponds to “B” level and 1 corresponds to “C” level
>
> So when I type in
>
> As.numeric(fx) I  would like to get
>
> 3 2 1

fx <- factor(x,levels=c("C","B","A"))

cheers,

	Rolf Turner
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