How to use slidify with impress.js

问题:

Following https://twitter.com/ramnath_vaidya/status/274636089715740672 slidify should support impress.js. But when I use

---
title       : Test
subtitle    : 
author      : 
job         : 
framework   : impressjs  # {io2012, html5slides, shower, dzslides, ...}
highlighter : highlight.js  # {highlight.js, prettify, highlight}
hitheme     : tomorrow      # 
widgets     : []            # {mathjax, quiz, bootstrap}
mode        : selfcontained # {standalone, draft}
---

as head of my Rmd-file (impressjs as in https://raw.github.com/ramnathv/slidify/gh-pages/samples/impressjs/index.Rmd) I get an empty directory in libraries/frameworks called impressjs.

Where do I have to enable impress.js? Do I have to install impress.js prior to using it?

回答1:

I have to use the branch "dev" of the respository:

install_github("slidify", "ramnathv", ref="dev")
install_github("slidifyLibraries", "ramnathv", ref="dev")