[R] index after rbind

Ann Hess hess at stat.colostate.edu
Mon Apr 21 18:19:36 CEST 2003


I am using rbind to concatenate two dataframes, but after the rbind I get
a strange "double" index.

I am using rbind a number of times to make one large dataset.  Is there a
way to prevent the "double" index?  Or is there some other way to
concatenate the data (it looks like merge only works by columns)?

Here is an example of the "double" index.

>numbers<-(1:5)
>letters<-matrix(c("a","b","c","d","e"),5,1)
>data<-data.frame(letters,numbers)
>doubledata<-rbind(data,data)
> doubledata
   letters numbers
1        a       1
2        b       2
3        c       3
4        d       4
5        e       5
11       a       1
22       b       2
33       c       3
44       d       4
55       e       5



More information about the R-help mailing list