hadley/adv-r — pull request #531 by yzhao0527 (2014-06-12 20:28:06+00:00)
Title: Update Computing-on-the-language.rmd

Typo: Change the last substitute to quote on line 163.

Before we can explore `eval()`, we need one more useful function: `quote()`. It captures an unevaluated expression like `substitute()`. Because you don't need to use it inside a function, `quote()` is useful for interactive experimentation.