Hi
r-help-boun...@r-project.org napsal dne 22.09.2009 14:57:59:
> Hi all, I have been trying to solve this problem and have had no luck so
far.
>
> I have numeric vectors VAR1, VAR2, and VAR3 which I am trying to cbind.
I also
> have a character vector "VAR1,VAR2,VAR3". How do I manipulate this
character
> vector such that I can input a transformed version of the character
vector
> into cbind and have it recognize that I'm trying to refer to my numeric
> vectors VAR1, VAR2, and VAR3.
>
> i.e. make cbind(some transformed version of character vector) equivalent
to
> cbind(VAR1,VAR2,VAR3)
>
> Alternatively, starting with the console input: VAR1 VAR2 VAR3
> how does one transform into the input VAR1,VAR2,VAR3
>
> (to get my aformentioned character vector I am using gsub(" ",",","VAR1
VAR2 VAR3"))
Something like this?
> mp
[,1] [,2] [,3] [,4] [,5]
[1,] 1.5 6.5 11.5 16.5 21.5
[2,] 2.5 7.5 12.5 17.5 22.5
[3,] 3.5 8.5 13.5 18.5 23.5
[4,] 4.5 9.5 14.5 19.5 24.5
> DF<-as.data.frame(mp)
> DF[,unlist(strsplit("V1,V2,V3", ","))]
V1 V2 V3
1 1.5 6.5 11.5
2 2.5 7.5 12.5
3 3.5 8.5 13.5
4 4.5 9.5 14.5
Regards
Petr
>
> Thanks for the help!
>
> Mike
>
>
>
>
> [[alternative HTML version deleted]]
>
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