* Stata do-file carsdata.do written January 2009

* Create a text log file that stores the results
log using carsdata.txt, text replace

* Read in the Stata data set carsdata.dta
use carsdata.dta

* Describe the variables in the data set
describe

* List the dataset 
list 

* Provide summary statistics of the variables in the data set
summarize

* Provide an X,Y scatterplot with a regression line
twoway (scatter cars hhsize) (lfit cars hhsize)

* Save the preceding graph in a file in PNG (portable networks graphic) format
graph export carsdata.png, replace

* Regress cars on hhsize
regress cars hhsize