TikZ in R Markdown

Question

R Markdown is a good tool for document authoring. It can use LaTeX statement in R Markdown directory. But when I try to insert a TikZ picture, I am lost about how to add preamble \usepackage{tikz} in it, so compile will fail.

Example code:

---
title: "R Markdown with tikz picture"
author: "Me"
date: "January 10, 2015"
output: beamer_presentation
---

## TikZ picture
- Here is a TikZ picutre

\begin{tikzpicture}
\draw (0,0) circle (2cm);
\end{tikzpicture}

Since actually it will generate a LaTeX document, so it's fine to just add it in LaTeX and then compile it to PDF but I wish I can just do it in R Markdown, then click the "Knit to PDF" button to generate PDF document directly.

Solution

In this post it is described how to use LaTeX packages in R Markdown. Not sure if the tikz-package works with R Markdown though.

Comments

[Admin]

Great,it's what I want.Need to add section in YAML: header-includes: - \usepackage{tikz}

[histelheim]

@Beatlej: Did it work to use the tikz package with RMarkdown?

[Admin]

@histelheim Sure, check a simple example from my answer below.

[krlmlr]

I am now using tikzDevice (via knitr::chunk_options$set(dev = "tikz")) in an rmarkdown document that builds as a PDF. It just works, the above line was enough, everything else seems to happen magically behind the scenes.