search for: pa799

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2011 Jun 28
2
coxph() - unexpected result using Crawley's seedlings data (The R Book)
...When running the examples on pp. 797-799 I can't detect any differences in results so I don't think there are errors in the data set or in the creation of the status variable. --------------------------------- Original from the R Book: http://books.google.com/books?id=8D4HVx0apZQC&lpg=PA799&ots=rQgd_8ofeS&dq=r%20coxph%20crawley&pg=PA799#v=onepage&q&f=false --------------------------------- My result: > summary(model1) Call: coxph(formula = Surv(death, status) ~ strata(cohort) * gapsize, data = seedlings) n= 60, number of events= 60...