search for: addictscdf

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2007 Apr 25
0
Use of Lexis function to convert survival data to counting format
...s are [0,183], [184,365], [366,548], [549,730], [730,Inf]). I looked in the searchable archives and found that others had also discovered problems with survSplit() and suggested Lexis() in the Epi package. When I try to get Lexis to work, I get an error message that I cannot interpret: > addictscdf<-Lexis(entry=start,exit=stop,fail='status',breaks=c(184,366,549,730), + include=c('id','clinic','prison','meth','clinic01'),data=addicts) The following object(s) are masked from addicts : clinic id meth prison status survtime...