PS04: Tidy Data and Joining Tables
Overview
Practice reshaping data between wide and long formats with tidyr, and combining data frames using dplyr join functions.
Read Chapter 4 of ModernDive before attempting this problem set.
Download
Download the problem set template, open it in RStudio, and complete the exercises directly in the document.
Setup
Run this at the top of your document to install and load the required packages:
if (!require(pacman)) install.packages("pacman")
pacman::p_load(tidyverse, nycflights13)Exercises
PS04a: Tidy data with tidyr
Use pivot_longer() and pivot_wider() to reshape data.
PS04b: Joining tables with dplyr
Use inner_join(), left_join(), and other join functions.
When you are done, render to HTML and submit on Moodle. Name your file PS04_yourname.html.