This is the lab associated with the lesson on Dates and Times in R.
Please upload your final completed lab on the Assignments page in Canvas, as per the instructions below.
You are welcome and expected to ask for help from the instructors if you get stuck: Please also come to the R Bootcamp on Friday—there is coffee and snacks!
We will use the Harry Potter movie data again.
First, read in the Harry Potter data from the course website, using the following code. This will download and make the data available to you in your current R session.
# Read in the Harry Potter Movies Table 1 dat.hp <- read.table("http://www.simonqueenborough.info/R/data/harry-potter-movies.txt", sep = '\t', header = TRUE)
Table 1. Box office history for all Harry Potter movies.
|Release Date||Movie||Production Budget||Domestic Opening Weekend||Domestic Box Office||Worldwide Box Office|
|Nov 16, 2001||Harry Potter and the Sorcerer’s Stone||$125,000,000||$90,294,621||$317,575,550||$974,755,371|
|Nov 15, 2002||Harry Potter and the Chamber of Secrets||$100,000,000||$88,357,488||$261,987,880||$878,979,634|
|Jun 4, 2004||Harry Potter and the Prisoner of Azkaban||$130,000,000||$93,687,367||$249,538,952||$796,688,549|
|Nov 18, 2005||Harry Potter and the Goblet of Fire||$150,000,000||$102,685,961||$290,013,036||$896,911,078|
|Jul 11, 2007||Harry Potter and the Order of the Phoenix||$150,000,000||$77,108,414||$292,004,738||$942,943,935|
|Jul 15, 2009||Harry Potter and the Half-Blood Prince||$250,000,000||$77,835,727||$301,959,197||$935,083,686|
|Nov 19, 2010||Harry Potter and the Deathly Hallows: Part I||$125,000,000||$125,017,372||$295,983,305||$960,283,305|
|Jul 15, 2011||Harry Potter and the Deathly Hallows: Part II||$125,000,000||$169,189,427||$381,011,219||$1,341,511,219|
|Nov 18, 2016||Fantastic Beasts and Where to Find Them||$180,000,000||$74,403,387||$234,037,575||$803,798,342|
What class is the Release Date column?
Convert this column to a date.
Extract the months from this new vector.
On which weekday was each movie released?
Which quarter (i.e., first quarter = Jan–Mar) was each movie released in?
Please check the help page for a reminder, if you need to.