read_dta
{haven}
Read a .dta file (Stata data)
attach
{base}
Attach Set of R Objects to Search Path
setwd
{base}
Set Working Directory
library
{base}
Load an R package
lm
{base}
Fit a linear model
ifelse
{base}
Return a or b depending on the value of test
summary
{base}
Obtain summary statistics or detailed regression output
The end!