How to improve jagged line graph in ggplot2?

Question

Is their any process to improve jagged lines produced by geom_line() joining multiple points into smooth presentable lines in ggplot2?

     lai.se <- structu         


        

Answer 1

In your answer to my comment you confirm that you want to anti-alias your lines (not change the curve of your plot).

I think the only way to do that in R is to use Cairo and here is a tutorial on how to do that with circles, i hope you can adapt that to do it with lines:

http://www.r-bloggers.com/weekend-art-in-r-part-3/