scale_size errors?

[Pbleic]

I have been trying to get scale_size to work with published examples.
Each time I use it, I get:

> p + scale_size(to=c(1,10))
Error in continuous_scale("size", "size_c",
rescale_pal(range), ...) :
unused argument(s) (to = c(1, 10))

Has something changed with ggplot2?

Here is an example:

p <- qplot(mpg, cyl, data=mtcars, size=cyl)
p + scale_size("cylinders")
p + scale_size(to = c(0, 10))
print(p)

[Dennis Murphy]

Hi:

In the new version of ggplot2 (0.9.0), many of the functions
pertaining to scales were rewritten and put into the scales package,
which is not autoloaded with ggplot2. The to = argument of
scale_size() in 0.8.9 has been changed to range = in the scales
package. So the short answer to your question is to use instead

p + scale_size(range=c(1,10))

If it doesn't work 'out of the box' with ggplot2-0.9.0, load the
scales package and try again. Your reproducible example worked for me
when I made the above change.

Dennis

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