presidents dataset error

[Felipe]

Hi:
Probably a naive question, but I am going though some of the examples
on the book and I can't find a way to make the below code work.
load("~/documents/data/08-presidents/presidents.rdata")
If I load the presidents datasets also give me an error saying that it
needs to be a data.frame, If I convert the dataset to data.frame it
tells me that the number of rows differ. Has anyone going through this
problem before? Thanks

[hadley wickham]

Here it is. I'll make sure it gets included in the next version of ggplot2.

Hadley

--
http://had.co.nz/