Install & load packages

install.packages(c("readr","readxl","ggplot2","dplyr"))
library(readr); library(readxl); library(ggplot2); library(dplyr)

Working directory

getwd()        # where R reads/writes by default
#setwd("C:/Users/you/Documents/stat312")  # set only when needed

Try it

• Install dplyr, load it, and run packageVersion("dplyr").
• Create a folder for course work and set it as the working directory.