[R] Sorting dataframe by different columns

[Kevin Wright]

On the R wiki site there is a general-purpose function
(sort.data.frame) that allows you to do this:

sort(df, by=~ x-z)

See: http://wiki.r-project.org/rwiki/doku.php?id=tips:data-frames:sort

Regards,

Kevin

On 6/8/07, Gunther Höning <gunther.hoening at ukmainz.de> wrote:
> Dear list,
>
> I have a very short question,
> Suggest a dataframe of four columns.
>
> df <- data.frame(w,x,y,z)
>
> I want this ordered the following way:
> first by :x, decreasing = FALSE
> and
> secondly by: z, decreasing =TRUE
>
> How can this be done ?
>
> Thanks
>
> Gunther
>
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