*
* Example from section 15.8, page 604
* ML Logit and Probit
*
open data table15-7.prn
data(format=prn,org=columns) 1 32 gpa tuce psi grade
*
* Estimate logit and test all explanatory variables but the constant
*
ddv(dist=logit) grade
# constant gpa tuce psi
exclude
# gpa tuce psi
*
* Estimate probit and test explanatory variables
*
ddv grade
# constant gpa tuce psi
exclude
# gpa tuce psi
*
* Estimate simple LPM
*
linreg grade
# constant gpa tuce psi