# PS6.1 for Example 6.1 
open data4-1
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
