[R] Ordering the levels of a vector

[Gabor Grothendieck]

Try mixedsort in the gtools package.

On Dec 3, 2007 4:21 PM, Judith Flores <juryef at yahoo.com> wrote:
> Hi,
>
>   I have a vector in a data frame that looks
> something like this:
>
> day<-c('Day -1','Day 6','Day 10')
>
>
>   This vector specifies the order in which several
> panel will appear in a lattice plots. But the order in
> which such plots will appear will be the following:
> Day -1, Day 10, Day 6. Which makes sense, but I cannot
> name the Days like this: Day -01,Day 10, Day 06, which
> would put the levels in the order I want them to be.
>
>  Now, this vector won't always have the same values,
> it could be:
>
> day<-c('Day -1, 'Day 2','Day 14')
>
>   So I cannot set the levels manually:
>
> levels(day)<-c('Day -1', 'Day something','Day
> something else')
>  I tried as.ordered, but I guess I am not using the
> right function.
>
> How can I command the script to put the panels in the
> original  order given of the vector in a data frame?
>
> Thank  you,
>
> Judith
>
>
>
>
>
>
>
>
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