use "C:\Users\Asus\Documents\AUCA\Teaching\2022-2023\Econometrics I\Seminars\Seminar 5\Data\hprice1.dta" 
describe
sum
regress price lotsize sqrft bdrms
predict pricehat
bro
gen pricehatsqrd=pricehat^2
gen pricehatcubed=pricehat^3
gen pricehatfourth=pricehat^4
regress price lotsize sqrft bdrms pricehatsqrd pricehatcubed pricehatfourth
regress price lotsize sqrft bdrms
estat ovtest
reg lprice llotsize lsqrft bdrms
predict pricetilde
gen pricetildesqrd=pricetilde^2
gen pricetildecubed=pricetilde^3
gen pricetildefourth=pricetilde^4
reg lprice llotsize lsqrft bdrms pricetildesqrd pricetildecubed pricetildefourth
reg lprice llotsize lsqrft bdrms
estat ovtest
gen lbdrms=log(bdrms)
reg price lotsize sqrft bdrms llotsize lsqrft lbdrms
reg price lotsize sqrft bdrms
reg price lotsize sqrft bdrms llotsize lsqrft lbdrms
test llotsize lsqrft lbdrms
reg price llotsize lsqrft lbdrms
reg price lotsize sqrft bdrms llotsize lsqrft lbdrms
test lotsize sqrft bdrms
reg price llotsize lsqrft lbdrms
predict pricebar
reg price lotsize sqrft bdrms pricebar
reg price lotsize sqrft bdrms
predict pricedot
reg price llotsize lsqrft lbdrms pricedot