hadley/ggplot2 — pull request #318 by kohske (2011-12-23 08:06:26+00:00)
Title: fix in coord-polar: flip axis title when theta = "y"

here is an example:

```
cxc <- ggplot(mtcars, aes(x = factor(cyl))) +
geom_bar(width = 1, colour = "black")
cxc + coord_polar() # x = factor(cyl), y = count
cxc + coord_polar(theta = "y") # x = count, y = factor(cyl)
```