(* PS6.1 using DATA4-1, for Example 6.1 *)
logs sqft bedrms baths 
(* learn about the logs command *)
help logs
(* "best" linear model *)
ols price 0 sqft
(* estimate linear-log model *)
ols price 0 l_sqft l_bedrms l_baths
(* omit l_baths *)
omit l_baths
(* omit l_bedrms also *)
omit l_bedrms
