[R] Odp: Conflating categories

[Petr PIKAL]

Hi

r-help-bounces at r-project.org napsal dne 14.12.2007 13:39:02:

> 
> 
> Hi,
> 
> I think this is a pretty basic question. I still couldn#t find the 
answer to 
> it, though.
> 
> I have some data loaded into R, which looks like this:
> 
> > data()
> ...
> 38358     Advice      Article
> 38359     Advice      Article
> 38360    GeneralInfo  List
> 38361    GeneralInfo      Article
> 38362     Purchase   Paragraphs
> 38363     Purchase         List
> 38364     Purchase   Paragraphs
> ...

If it is factor you can change its levels

> temp$V1
[1] A01 A01 A01 A02 A02 A03 A03 A04
Levels: A01 A02 A03 A04
> levels(temp$V1)
[1] "A01" "A02" "A03" "A04"
> levels(temp$V1)[1:2]<-"one"
> temp$V1
[1] one one one one one A03 A03 A04
Levels: one A03 A04

Regards
Petr



> 
> 
> I now would like to edit the data in such a way that every "Advice" is 
> changed into "GeneralInfo".
> Is there some easy way how I can do this?
> 
> Thanks a lot!
> 
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