df = data.frame(x1 = 100:105, x2 = 200:205)
library(reshape2)
melt(df)
Michael
On Wed, Nov 9, 2011 at 10:14 AM, Johannes Radinger <jradin...@gmx.at> wrote:
> Hello,
>
> I very general question but probably usefull to others as well:
>
> Is there any prebuild function that reorders a dataframe from:
>
> x1 x2
> 1 100 200
> 2 101 201
> 3 102 202
> 4 103 203
> 5 104 204
> 6 105 205
>
> to
>
> 1 100 x1
> 2 101 x1
> 3 102 x1
> 4 103 x1
> 5 104 x1
> 6 105 x1
> 7 200 x2
> 8 201 x2
> 9 202 x2
> 10 203 x2
> 11 204 x2
> 12 205 x2
>
> I found a way with:
>
> names <- rep(c("x1","x2"),c(length(x1),length(x2)))
> x <-c(x1,x2)
> data.frame(x,names)
>
> but probably there is already another function for doing such things more
> easily.
>
> Thank you
> Johannes
> --
>
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