You've managed to make even ggplot's already excellent default outputs look even better. Love the darker grey gridlines, the unified grey panel background which includes the headline, the alpha < 1 so the grid shows through, and especially the choice of axis fonts. Nice touch on the footnote too. This is what professional charts are supposed to look like.

This is great, thank you. One note, though: I've yet to try it, but according to this stackoverflow-post:

http://stackoverflow.com/questions/1898101/qplot-and-anti-al...

it should now be possible to get AA on both Windows and Linux via the Cairo-library.

I'll be playing a bit with R notebooks for my stats intro class, if I find the time I'll try to see if a) I get AA out of the box, or b) I can get AA easily by setting some parameters.

[ed: And if I do, I suppose pr to https://github.com/minimaxir/ggplot-tutorial will be in order]

Funny you should mention a subject which is close to my heart :-). http://stackoverflow.com/questions/6023179/anti-aliasing-in-...

Cario is good but Quartz was better in my experience.