# Replicate ordered probit model of doctor visits from 
# A. C. Cameron and P. K. Trivedi, "Regression Analysis 
# of Count Data" (Cambridge, 1998).  

# See also http://cameron.econ.ucdavis.edu/racd/count.html
# and http://www.stanford.edu/~clint/bench/ for TSP results

open rac3d.gdt
probit DVISITS 0 SEX AGE AGESQ INCOME LEVYPLUS FREEPOOR FREEREPA \
  ILLNESS ACTDAYS HSCORE CHCOND1 CHCOND2
