supstat/vistat — pull request #6 by yulijia (2013-04-09 14:35:18+00:00)
Title: Two new articles

Hi, two new articles.
2013-04-08-a-cheat-sheet-for-plotting-symbols-and-color-palettes-in-r.Rmd
2013-04-08-mathematical-annotation-in-r.Rmd