[R] Change positions of columns in data frame

[Phil Spector]

Joel -
    Suppose the columns are named x1, x2, x3, x4, and x5.

You can use subscripting:

  x[c('x2','x4','x1','x3','x5')]

or, to save typing the quotes

   subset(x,select=c(x2,x4,x1,x3,x5))


 					- Phil Spector
 					 Statistical Computing Facility
 					 Department of Statistics
 					 UC Berkeley
 					 spector at stat.berkeley.edu



On Fri, 23 Oct 2009, Joel Fürstenberg-Hägg wrote:

>
> Hi all,
>
> Probably a simple question, but I just can't find a simple answear in the older threads or anywhere else.
>
> I've added some new vectors as columns in a data frame using cbind(). As they're all put as the last columns inte the data frame, I would like to move them to specific positions. How do you do to change the position of a column in a data frame?
>
> I know I can use fieldTrial0809=data.frame(Sample_ID=as.factor(fieldTrial0809$Sample_ID), Plant_ID=as.factor(fieldTrial0809$Plant_ID), ...) to create a new data frame with the given columns in the specified order, but there must be an easier way..?
>
> All the best,
>
> Joel
>
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