[R] How to sort a dataframe?

Chuck Cleland ccleland at optonline.net
Mon Apr 7 20:11:29 CEST 2003


Remko Duursma wrote:
> for the purpose of plotting a dataframe, i am trying to sort a dataframe by one column, for example
> 
> tester <- data.frame(one=c(3,2,1), two=c(2,3,1))
> 
> #> tester
> #  one two
> #1   3   2
> #2   2   3
> #3   1   1
> 
> # I want to sort "tester" by column "one", so that i get a dataframe
> # that looks like:
> #one two
> #1    1
> #2    3
> #3    2

Remko:

   First examine the results of the following:

order(tester[,1])

   Then try this:

tester[order(tester[,1]),]

   See ?order.

hope it helps,

Chuck Cleland



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