Lab Goal: The goal of this lab is to introduce rmarkdown! Afterwords you won’t be an expert, but you’ll have taken your first step into a larger world.

You should use the .Rmd file which created this document as a template for the lab. This file can be found in the .zip file that contains all the necessary files for the lab.

During Lecture


[Exercise] Write an unordered list of your classes this semester. Make the short course name (STAT 430) bold. Have the short course name link to the course description in the course explorer. Make the actual course title (Basics of Statistical Learning) italic.


[Exercise] Add a chunk to this document that sums the integers from 1 to 100. It should display both the code and results after being knit. (Also, can you make this chunk only show output when knit? How about display the code, but don’t run the chunk when knit?)

[Exercise] Add a chunk to this document that sums the integers from 1 to 100. It should display only the results after being knit.

Loading Data

[Exercise] Read in lab02-data.csv as lab02_data.

# your code here

[Exercise] Report the first 10 rows of lab02_data as a table. Hint: check out the kable() function from the knitr packge.

# your code here


[Exercise] Create a scatterplot of dist vs speed for the cars data, a dataset built into R. Use chunk options to make the plot larger than the default.

# your code here

After Lecture

We probably went way too fast in lecture if this is your first time seeing rmarkdown. However, even if we went a lot slower, you would still need to engage a lot with rmarkdown to really get the hang of it. There are a number of things you should do to help get yourself up to speed:



[Exercise] Repeatedly run the (entire) two previous chunks. What’s the difference?


With RMarkdown, you can not only mix R and markdown, but you can also use LaTeX. It can be used inline: \(y = x + 2\) or in “equation mode,”

\[ a^2 + b^2 = c^2 \]

[Exercise] Write the density function for a normal distribution using LaTeX in equation mode.

  • Hint: You can obtain the LaTeX for any equation in R4SL by right clicking it, selecting “Show Math As” then clicking “TeX Commands.”

Chunk and Document Options

Some other things to try:

  • Can you change the theme of this document?
  • Can you add a table of contents to this document?