[R] Combining several mappings in ggplot2

[Tribo Laboy]

Hi Hadley,

I am surprised you find time to reply to r-help questions despite your
thesis deadline being on Monday. Good luck with it! Yes, I can wait
until the new version is ready!

Regards,

TL

On Thu, Mar 27, 2008 at 12:28 PM, hadley wickham <h.wickham at gmail.com> wrote:
> On Wed, Mar 26, 2008 at 6:01 AM, Tribo Laboy <tribolaboy at gmail.com> wrote:
>  > Apologies! I though that the Orange dataset comes with R, but it is in
>  >  fact in the package "datasets".
>  >
>  >  So here's another "Orange2" dataset for the example:
>  >
>  >  Tree_v = rep(c(1:5),each = 5)
>  >  age_v = rep(seq(1,25, by = 5),5) + 10*runif(25)
>  >  circumference_v <- rep(seq(21,45, by = 5), 5)*Tree_v + 25*runif(25)
>  >  Orange2 <- data.frame(Tree = as.factor(Tree_v), age = age_v,
>  >  circumference = circumference_v)
>  >
>  >
>  >  This works fine:
>  >
>  >  ggplot(data = Orange2, aes(x = age, y = circumference, color = Tree))
>  >  + geom_line()
>  >
>  >  These generate errors (included):
>  >
>  >  > ggplot(data = Orange2, aes(x = age, y = circumference, color = Tree, linetype = Tree)) + geom_line()
>  >  Error in get("check_domain", env = ., inherits = TRUE)(., ...) :
>  >   Too many values in domain (5 > 4)
>  >
>  >
>  >  > ggplot(data = Orange2, aes(x = age, y = circumference, color = Tree)) + geom_line() + scale_linetype_manual(value = c(1:5))
>  >  Error in unit(values, units, data = data) :
>  >   'x' and 'units' must have length > 0
>  >
>  >
>  >  What am I doing wrong?
>
>  It works fine for me, which implies that it's a bug that I've fixed in
>  the development version.  I should be releasing a new version soon
>  (just as soon as I've handed in my thesis on Monday) so your best bet
>  is to wait for that.
>
>
>
>  Hadley
>
>
>  --
>  http://had.co.nz/
>