[R] Reorder a data frame according a column randomly reordered.

[Uwe Ligges]

On 18.04.2011 17:04, Mohammad Tanvir Ahamed wrote:
> Hello all ,
> I have a data frame like this
>
> X1X2X3
> 11815
> 22916
> 331017
> 441118
> 551219
> 661320
> 771421
>
> now i want to randomly reorder the variable X2  but the row element should be same
> as for example
>
> X1X2X3
> 12916
> 251219
> 331017
> 471421
> 561320
> 61815
> 741118
>
> how can i do that ??
>
> Hint :
> this could be helpful :
>
> if X2 is only a vector like this
> X2<-c(8,9,10,11,12,13,14)
>
> so i can easily reorder it by using sample commend
> sample (X2 , size=length(X2), replace=FALSE)
>


Yes, and then replace X2 with your reordered X2.

Uwe Ligges





> may be i have to use lapply commend with sample commend .
>
>
> /.......Tanvir Ahamed
>
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>
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