Thanks a lot David.
Just a suggestion - it might help if this is added to the help of factor()
Rainer
David Barron wrote:
> That's an FAQ:
>
> 7.10 How do I convert factors to numeric?
>
> It may happen that when reading numeric data into R (usually, when
> reading in a file), they come in as
That's an FAQ:
7.10 How do I convert factors to numeric?
It may happen that when reading numeric data into R (usually, when
reading in a file), they come in as factors. If f is such a factor
object, you can use
as.numeric(as.character(f))
to get the numbers back. More efficient, but harder
Hi
I generate a new dataframe by doing:
npl.agg <- aggregate(npl$DensPlants, list(year=npl$year, sim=npl$sim),
mean, na.rm=TRUE )
Now I want to plot it by using
coplot(npl.agg$x ~ npl.agg$year | npl.agg$sim, type="l")
but, as npl.agg$year is seen as a factor, the order of the points on the
x
