# References

## Helpers and Templates

• RMarkdown Cheatsheet An overview of Markdown and RMarkdown conventions.
• RStudio Cheatsheets Other quick guides, including a more comprehensive RMarkdown reference and a information about using RStudio’s IDE, and some of the main tools in R.

## Tools

• Apple’s Developer Tools Unix toolchain. Install directly with xcode-select --install, or just try to use e.g. git from the terminal and have OS X prompt you to install the tools.
• Homebrew package manager. A convenient way to install several of the tools here, including Emacs and Pandoc.
• R. A platform for statistical computing.
• knitr. Reproducible plain-text documents from within R.
• Python and SciPy. Python is a general-purpose programming language increasingly used in data manipulation and analysis.
• RStudio. An IDE for R. The most straightforward way to get into using R and RMarkdown.
• TeX and LaTeX. A typesetting and document preparation system. You can write files in .tex format directly, but it is more useful to just have it available in the background for other tools to use. The MacTeX Distribution is the one to install for macOS.
• Pandoc. Converts plain-text documents to and from a wide variety of formats. Can be installed with Homebrew. Be sure to also install pandoc-citeproc for processing citations and bibliographies, and pandoc-crossref for producing cross-references and labels.
• Git. Version control system. Installs with Apple’s Developer Tools, or get the latest version via Homebrew.
• GNU Make. You tell make what the steps are to create the pieces of a document or program. As you edit and change the various pieces, it automatically figures out which pieces need to be updated and recompiled, and issues the commands to do that. See Karl Broman’s Minimal Make for a short introduction. Make will be installed automatically with Apple’s developer tools.
• lintr and flycheck. Tools that nudge you to write neater code.