[R] Sorting in data frames

[Uwe Ligges]

Stephen Thackeray wrote:
> Hi, 
> 
> Is it possible to sort the rows within a data frame, with respect to
> the values in one or more of the columns? For example, if I had measured
> water temperatures at differenrt depths within a lake, on different
> sampling dates and had a dataframe containing sampling dates (x),
> sampling depths (y) and data for each day-depth combination (z), would
> it be possible to rearrange the data frame so that it is sorted by day
> and then by depth? 

See ?order and the mailing list archives.

Uwe Ligges