R Markdown Recitation Solutions

R Markdown Recitation

This will be your template RMarkdown document for playing around with RMarkdown. This was opened using the default Rmd settings. You are going to be playing around with the 3 components of an Rmd:

1. text
2. code
3. the YAML (aka the header)

To see if each of your changes has worked, you will need to knit.

Text

Write text that generates in italics. This text is in italics

Write text that generates in bold This text is in bold

Try playing around with header levels

Biggest header

Second biggest header

Third biggest header

Four biggest header

You get the idea.

Add a hyperlink to our class website

Add an image. Note you will do this differently if you are adding an image from internet vs one you have on your local machine. Also remember your working directory is the location of your Rmd and you may want to have a directory called img where images are stored.

This is my dog Nacho

Add a block quote

Here is an important block quote

Make a bulleted list

• Thing 1

• Thing 2

• Thing 3

• This also works

• To make

• A bulleted list

1. You can also
2. Make
3. Numbered lists

Code

Create a code chunk by typing

Create a code chunk using the toolbar

Create a code chunk using the keyboard shortcut

Write some code within a chunk and execute it

getwd()

[1] "/Users/jessicacooperstone/Library/CloudStorage/OneDrive-TheOhioStateUniversity/BuckeyeBox Data/JLC_Files/OSU/teaching/data-viz/rdataviz/rmds"

Write some code in line (within your text) and knit

Is it Friday yet?

Try using the different options for your code chunks. Remember you can use multiple at once.

Get code to run but not display

(See it did actually run as it shows up here.)

my_vector

 [1]  1  2  3  4  5  6  7  8  9 10

Get code to display but not run

install.packages("tidyverse")

Get code to hide messages

library(tidyverse) 

Note, this still displays “warnings” which are different from messages. You can hide warnings too but do so with care.

library(tidyverse)

Add a figure caption

plot(cars)

Here is my plot about cars

Add alt text

plot(cars)

Give your chunk a name

dim(cars)

[1] 50  2

The YAML

Edit the default components of the YAML to be personalized to you

Play around with adding a:

• Table of contents
• Code download button
• Code folding

You can learn more about setting other arguments in your YAML here.

Play around with the default themes: you can find a gallery of the themes here. This site shows you some examples of themes from the packages prettydoc, rmdformats and/or tufte. Before you can use those themes, you need to download them, which you can do using the code below:

install.packages("prettydoc")
install.packages("rmdformats")
install.packages("tufte")

You can see some other examples of using themes here.

Here are some example YAMLs. I put it in a code chunk so it renders if you knit this file, but you want to copy just the part between the --- and ---.

---
title: "R Markdown Recitation Solutions"
author: "Jessica Cooperstone"
output: 
  html_document:
    toc: true # have a TOC
    toc_float: true # make TOC float
    number_sections: true # number the sections
    theme: lumen # use the theme "lumen"
    code_download: true # add a code download button
    code_folding: hide # code folded by default
---

You can learn more about prettydoc here.

---
title: "Your Document Title"
author: "Document Author"
date: "`r Sys.Date()`"
output:
  prettydoc::html_pretty:
    theme: architect
    highlight: github
---

---
title: "This is a readthedown Themes YAML from `rmdformats` Package"
author: "Type your name here"
date: "`r Sys.Date()`"
output: 
  rmdformats::readthedown
---

Other stuff

Play around with the visual editor.