A few words from the authors

This repository is a bookdown template, derived from the LaTeX template from the seminar for statistics, ETH Zurich.

How bookdown works

In a nutshell, bookdown works as follows:

• use knitr to convert Rmd to markdown.
• use pandoc to convert markdown to latex, pdf, word, html books (with features like font size, background selection, full text search etc), epub.

The basic workflow in RStudio is as follows:

• Open the RStudio project.
• Change a source file: In our template, the source of the body of the thesis is under ./rmd/. For example, change 02-features.Rmd. To make sure only files from this directory are used, we set the option rmd_subdir: ["rmd/"] in bookdown.yml. For this to work you need bookdown version 0.9 or greater.
• Re-compile the book using Cmd + Shift + B (for build) on a Mac and Ctrl + Shift + B on Windows / Linux.
• You can customize the build in the RStudio Build Tab, where you can specify which output (html, pdf, etc.) you want to generate. This is remembered for the next build you are doing.

Getting started

For the git cracks: Fork the upstream repository and clone the fork.Then, you will have one remote repository: origin, which refers to the fork. Add the upstream repo as an upstream remote so you can later rebase on it in case you need. We recommend using ssh over https, but if that’s too complicated with the RSA key, just use https, it will do the job.

For everyone else: You can also simply download the repo. However, we strongly recommend using version control for your thesis.

Make sure to watch this GitHub repo for issues that might affect you.

Why using bookdown

The advantages of using bookdown instead of plain LaTeX are, in the eyes of the creator of this template:

• Generalization. Not just latex or PDF output, but any output supported by Pandoc, e.g. Word and html, epub. If you at some point decide to work with LaTeX only, just render to LaTeX and continue. You don’t loose anything compared to status quo. When you host your source code on GitHub, you can easily publish a html book that is updated with every push. How? Checkout https://github.com/ropenscilabs/tic.bookdown.
• The best of two worlds. Use intuitive markdown syntax where possible, use the full power of LaTeX syntax where needed. This includes bibtex reference, LaTeX cross-, text- and figure reference.
• It’s native R. Integrate R code and R output such as plots, tables, figures directly in your writing has never been easier than with bookdown. You can turn a data frame into a latex table using the power of R packages such as kableExtra. You can change the data subset, re-compile the whole book and all figures, tables and other data dependent elements will be updated.
• The power of RStudio. Use the same IDE for programming and writing. Leverage the advantages of a real-time latex equation previewer right in your R Markdown, a git GUI, spell checking, file browser and more.
• You can also use other languages supported by knitr such as python, stan etc. You can even use R code to control the behavior of chunk evaluation. Below, we even used the bash command tree to show the directory structure of this repo. Since unicode is not supported with pdflatex, we used R code to tell knitr to use the tree command with the option charset unicode for pdf output and without it for html output. Check the Rmd source of the README to learn more.
• Because it’s native R, you can place R variables in the floating text. Check out the Rmd source of this document to see that we used R to compute the square root of three (1.7320508), print today’s date with Sys.Date() right into the text: 2021-04-12

How this template works

There are different directories in this template:

tree -d -L 2

• _book: Contains the compiled book, e.g. a PDF or html version.
• _bib: Contains BibTeX reference data bases.
• figure: Contains figures you created from your (R) code in the rmd source.
• images: Put images you want to include in your thesis in this folder.
• pdf: Put PDFs you want to include in your thesis in this folder.
• rmd: The source folder of thesis. When you build a book, the following happens: By default, all rmd files in this folder get merged into one big rmd file, according to their name. We suggest to use one file per chapter. Then, the file containing all the rmd sources will get processed by knitr and later by Pandoc.
• scratch: A random directory which is not tracked by git by default. The idea is that you can put things that are not ready to commit or that have a temporary character here.
• style: Latex .sty files. Taken from the sfs LaTeX template.
• tex: All tex data, most importantly, the sfs LaTeX template itself. Note that the abstract, preface, epilogue, summary, notation are still in tex, i.e. you need to change these files if you want the PDF output to change. This will not affect the html output. You can create chapters that show up in a particular output and not in the other forms as shown in rmd/99-references.Rmd.

Furthermore, we want to highlight a few files in the root directory of the project:

• DESCRIPTION: You can use it to declare dependent packages of your thesis in the Imports: field. If someone want’s to rebuild you thesis from scratch, the can use remotes::install_deps() to satisfy all R package dependencies.
• index.Rmd: Contains a YAML header where a few important variables are defined. You can also put markdown below the header.
• README.(R)md: This document.
• thesis-template-bookdown.Rproj: An RStudio project. We recommend using RStudio for authoring your master thesis with bookdown.

A few recommendations

• We strongly suggest to use a different folder for the data / code of your thesis and reserve this directory for the thesis document only. You can rename this directory analysis-communication (since this will be the means used for communicating the results and process of your thesis) and use analysis-raw for the code and data for all data. Ideally, you place them in the same directory so you can still work with relative paths, e.g. ../data.
• We suggest to use the package manager {renv} for better reproducibility and isolation for the packages in this project from the global library. It’s already initialised with this template. All packages you install and update are contained in a separate library.
• We suggest to use git version control for the thesis and the raw analysis.
• If your thesis is open source, you can use netlify.com to deploy it, i.e. for every commit you push to a remote repo like GitHub, you can use netlify’s CLI to build your book on a CI machine like travis. See file travis.yml for the bookdown book Advanced R for an example. That makes tracking the _book folder in git redundant.
• To keep lines 80 characters long, you can use the stylermd Rstudio Addin. Assign a keyboard shortcut to it and it will format your text nicely. See https://github.com/lorenzwalthert/stylermd for details.
• You might want to use {targets}, a MAKE like pipelining tool to keep your analysis reproducible and only re-execute the outdated parts.

Further material

This is obviously a very short introduction to the template and it is in no way comprehensive. To learn more about bookdown, we encourage the reader to have a look at the bookdown guide as well as searching through stack overflow / Google for particular questions. In addition, inspect the different files in this repo, in particular the ones in the rmd directory to develop a deeper understanding of the template.

As of early 2018, this template is still in alpha testing phase, so you may experience unexpected behavior. If you experience problems after you searched on Google and other platforms for a solution, feel free to open an issue in this repo.

Best,

Nicola Gnecco and Lorenz Walthert