[R] How to sort a dataframe?

Ravi Varadhan
Mon, 07 Apr 2003 22:21:47 -0000

How does one sort a dataframe on multiple columns, say you first sort
on variable 1 and then on variable 2, etc.? Is there a simple, one-
liner to do this?

thanks,
Ravi.

----- Original Message -----
From: Spencer Graves <spencer.graves at pdf.com>
Date: Monday, April 7, 2003 2:07 pm
Subject: Re: [R] How to sort a dataframe?

> > tester <- data.frame(one=c(3,2,1), two=c(2,3,1))
> > tester[order(tester$one),]
>   one two
> 3   1   1
> 2   2   3
> 1   3   2
> >
> Spencer Graves
>
> Remko Duursma wrote:
> > Dear R-helpers,
> >
> > 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
> >
> > I know of 'sort' but it can only sort vectors.
> >
> > Thanks for your help,
> >
> > Remko Duursma
> >
> > ______________________________________________
> > R-help at stat.math.ethz.ch mailing list
> > https://www.stat.math.ethz.ch/mailman/listinfo/r-help