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#
# A test to exercise the "infinity" check on 2 variables
#
test3 _ data.frame(futime=1:12, fustat=c(1,0,1,0,1,0,0,0,0,0,0,0),
           x1=rep(0:1,6), x2=c(rep(0,6), rep(1,6)))
coxph(Surv(futime, fustat) ~ x1 + x2, test3)