Is this what you want:
> x
V1 V2 V3 V4 V5 V6 V7 V8 V9
11145 14.3 17.1 31.2 41.7 45.8 49.8 68.6 70.6 72.9
3545 10.2 15.6 20.9 23.2 31.4 31.7 36.2 48.4 51.9
8951 15.2 17.5 20.0 21.4 32.4 49.7 51.3 58.3 58.9
11097 59.5 65.9 117.5 118.0 118.9 122.5 126.3 156.5 157.0
> x[,1]
[1] 14.3 10.2 15.2 59.5
> x[,1,drop=FALSE]
V1
11145 14.3
3545 10.2
8951 15.2
11097 59.5
>
You probably need the 'drop=FALSE'; see ?'['
On Sun, Jun 22, 2008 at 10:16 PM, Gundala Viswanath <[EMAIL PROTECTED]> wrote:
> Hi,
>
> How can I extract the label only from a given data frame.
>
> Fore example from this data frame.
>
>> print(dataf)
> V1 V2 V3 V4 V5 V6 V7 V8 V9
> 11145 14.3 17.1 31.2 41.7 45.8 49.8 68.6 70.6 72.9
> 3545 10.2 15.6 20.9 23.2 31.4 31.7 36.2 48.4 51.9
> 8951 15.2 17.5 20.0 21.4 32.4 49.7 51.3 58.3 58.9
> 11097 59.5 65.9 117.5 118.0 118.9 122.5 126.3 156.5 157.0
>
> I want to get the label (first) column only:
>
> 11145
> 3545
> 8951
> 11097
>
> Is there a quick way to achieve that?
> I tried this but fail:
>
> mylable <- dataf[,1]
>
> Please advice.
>
> - Gundala Viswanath
> Jakarta - Indonesia
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
What is the problem you are trying to solve?
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