[R] interval censoring

Andrew Beckerman a.p.beckerman at stir.ac.uk
Thu Oct 31 15:42:07 CET 2002

Dear listers -

R 1.6, WINNT, S+2000 also

I am trying to implement a mark-recapture analysis in R. I have data on the 
timing of the fledging of birds.

Over the course of a 35 day period, I have daily records of a) fledging, b) 
alive or c) missing.  e.g., on any given day, i can see a bird and know 
that it has fledged (it has feathers now and wants to fly). Or I can see a 
bird and it still has not fledged but is alive.  Finally, I can not see the 
bird on that day.

I am having trouble identifying what event code to give each of these 
events in the interval censoring context

(0,1] - alive = ?
(0,1] - missing = ?
(0,1] - fledged = ?

any advice would be most appreciated.

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