*
* Example 2.11 from page 45
*
open data ceosal1.raw
data(format=free,org=columns) 1 209 salary pcsalary sales roe pcroe ros indus finance consprod utility lsalary lsales
*
set lsalary = log(salary)
set lsales  = log(sales)
*
linreg lsalary
# constant lsales