Advanced R Markdown documents
After compiling our first R Markdown report, we want to go ahead and look at the advanced options for embedding code chunks with the knitr syntax. Also, you will learn how to brand your reports with custom style sheets.
Getting to know R code chunks
As we have already seen in our sample report, R Markdown uses so called code chunks to render R Code into reports.
This exemplary code chunk shows the most elementary way to include an R code snippet in our .Rmd file. Just three back ticks, ``` at the beginning and end of the chunk, and the letter r in curly brackets, {r}.
Even if it is a short code chunk, the output includes an H1 heading, the used R code, and a complete plot.
Customizing R code chunks
R Markdown offers a lot of options to customize your code chunks. This is necessary because, on the one hand, R Markdown includes all code lines and even error and warning messages by default. On the other hand, including many lines of code may distract readers from your...
