[R] Re: Isnt it a a documentation bug in the data.fram or rbind docu? Re: [R] data.frame package?

Anders Nielsen anielsen at dina.kvl.dk
Tue Apr 30 17:15:17 CEST 2002

Dear Eryk

On Tue, 2002-04-30 at 17:57, Witold Eryk Wolski wrote:
> Thx i never used and heard about subset.
> Subset isn't  mentioned in the see also section of the data.frame function.
> And it is missing in the R intro to.
> The rbind description says.
> ...         vectors or matrices. (but nothing about data.frames)
> And subset is not working for strings.
> But what if you have in your dataframe char (string data)?
> eg.: subset(data1,name=grep("Anders")) wouldn't work.

But the following will: 

> dat<-data.frame(name=c("Anders", "Eryk", "Eryk"), y=1:3)
> dat
    name y
1 Anders 1
2   Eryk 2
3   Eryk 3
> dat.Anders<-subset(dat, name=="Anders")
> dat.Anders
    name y
1 Anders 1

Kind regards, 


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