setwd
{base}
Set Working Directory
geom_smooth
{GGPLOT2}
Generates a smoothed conditional means curve / line
theme_classic
{GGPLOT2}
A minimalistic theme with no gridlines
library
{base}
Load an R package
aes
{GGPLOT2}
Construct aesthetic mapping of a ggplot graph
ggplot
{GGPLOT2}
Create a ggplot graph
geom_point
{GGPLOT2}
Generates a scatter plot
read_excel
{readxl}
Read an Excel file
The end!