finiterank/pisa — pull request #1 by demorenoc (2014-09-01 05:09:19+00:00)
Title: My first pull request!

Various changes. Code clean-up/readability mostly. Added knitr chunk options in the setup chunk. Changed first country selection to OECD and Latin America. Rearrange some plots (use facet_wrap() instead of facet_grid() in the densities plot). Added a comment to the violin plot. (I am still learning Git/GitHub).