(* PS6.4, using DATA4-1, for Practice Problems 6.5 and 6.6 of Section 6.4 *)
genr sqft2=sqft*sqft
(* obtain logarithm of sqft *)
genr lsqft=log(sqft)
(* Practice problem 6.5 *)
ols price 0 sqft sqft2
(* Practice problem 6.5 *)
ols price 0 lsqft
(* Practice problem 6.6 *)
ols price 0 lsqft baths
