> colnames( df )[2]
[1] "c2"
On Thursday 02 February 2012 07:31:33 ikuzar wrote:
> Hi,
>
> I 'd like to know how to retrieve a column name of a data frame. For
> instance :
>
> df = data.frame(c1=c('a','b'),c2=c(1,2))
>
> > df
>
> c1 c2
> 1 a 1
> 2 b 2
>
> I would like to retrieve the column name which value is 2 (here, the column
> is c2)
>
> thanks for your help
>
> --
> View this message in context:
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> -tp4351764p4351764.html Sent from the R help mailing list archive at
> Nabble.com.
>
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