/usr/share/gretl/scripts/ps6-4.inp is in gretl-common 1.9.6-1build1.
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1 2 3 4 5 6 7 8 9 10 11 | # PS6.4, for Practice Problems 6.5 and 6.6 of Section 6.4
open data4-1
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
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