R Markdown document creation in R Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start an R Markdown document with the correct YAML header.

R Programming

---
title: "My Document"
output: [1]
---

Drag options to blanks, or click blank then click option'

Ahtml_document

Bpdf_document

Cword_document

Dmarkdown_document

Attempts:

3 left

💡 Hint

Common Mistakes

Using an output format not supported by R Markdown

Forgetting to put quotes around the title

The output field specifies the format of the R Markdown output. html_document creates an HTML file.

2fill in blank

medium

Complete the code to insert an R code chunk in R Markdown.

R Programming

```[1]
summary(cars)
```

Drag options to blanks, or click blank then click option'

Asql

Bpython

Cbash

Dr

Attempts:

3 left

💡 Hint

Common Mistakes

Using other languages like python or bash inside R Markdown R chunks

Forgetting the triple backticks

R code chunks start with ```r in R Markdown.

3fill in blank

hard

Fix the error in the YAML header to correctly specify the author.

R Programming

---
title: "Analysis"
author: [1]
output: html_document
---

Drag options to blanks, or click blank then click option'

Aauthor: John Doe

BJohn Doe

C"John Doe"

D'John Doe'

Attempts:

3 left

💡 Hint

Common Mistakes

Not quoting the author name

Including the key name again inside the value

The author name must be a string in quotes in YAML to be valid.

4fill in blank

hard

Fill both blanks to create a code chunk with echo turned off.

R Programming

```[1] [2]
plot(pressure)
```

Drag options to blanks, or click blank then click option'

Ar

Bpython

Cecho=FALSE

Decho=TRUE

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong language name

Setting echo to TRUE instead of FALSE

The chunk language is r and echo=FALSE hides the code in the output.

5fill in blank

hard

Fill all three blanks to create a YAML header with title, author, and date.

R Programming

---
title: [1]
author: [2]
date: [3]
output: html_document
---

Drag options to blanks, or click blank then click option'

A"My Report"

B"Alice Smith"

C"2024-06-01"

D2024-06-01

Attempts:

3 left

💡 Hint

Common Mistakes

Not quoting the date

Using unquoted strings in YAML

YAML strings should be quoted. The date is also quoted as a string.