yihui/knitr-examples — pull request #14 by Robinlovelace (2013-08-12 02:31:44+00:00)
Title: Update 009-slides.md

Corrected very minor typo: less only applies to things that cannot be counted. Commands can, so you have fewer of them, not less! See here: http://oxforddictionaries.com/words/less-or-fewer