Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111
> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Jun Shen
> Sent: Tuesday, May 03, 2011 2:43 PM
> To: R-help
> Subject: [R] Change the names of a dataframe
>
> Dear list,
>
> This may sound silly. What is the right way to change the names of a
> dataframe? Let's say I have this data frame (dose) with four columns
> with
> names "ID", "DOSE", "TIME" "CMT". I want to change "DOSE" to "AMT". So
> I did
>
> names(dose[2])<-'AMT'
>
> But nothing happened. The name of the second column is still "DOSE".
>
> Only this works
>
> names(dose)[2]<-'AMT'
>
> I wonder what is wrong with the first method. Thanks.
>
> Jun
>
> [[alternative HTML version deleted]]
>
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