/usr/share/gretl/scripts/misc/ooballot.inp is in gretl-common 1.9.6-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | open ooballot
# restrict to 'P' and 'O' countries
smpl Status > 0 --restrict
# split CPI on median
genr hicorr = CPI<3.95
# make binary approval variable (omits abstainers)
genr approv = (Vote=0)? 0 : ((Vote>1)? 1 : NA)
# mark the two new variables as discrete
discrete hicorr approv
# and cross-tabulate
xtab hicorr approv
# An econometrician might be more inclined to run a
# regression...
ols Vote 0 CPI
# But of course plain OLS is suspect because "Vote" is not
# on an interval scale: so try ordered probit
probit Vote 0 CPI
# Normality is strongly rejected so use QML standard errors:
# CPI is still strongly significant
probit Vote 0 CPI --robust
# Compare the rank-sum test given on effi.org, using
# all non-abstaining countries for which CPI is available
smpl --full
genr capp = (Vote > 1)? CPI : NA
genr cdis = (Vote = 0)? CPI : NA
difftest capp cdis --rank-sum
|