Hello, 
Is it possible to create confidence intervals for hazard rates?  I'm creating two muhaz objects: 


haz1 <- muhaz(NumDaysCustomer[cRV=="true"],status[cRV=="true"]) 
haz2 <- muhaz(NumDaysCustomer[cRV=="false"],status[cRV=="false"]) 


and plotting them.  There are many, many more observations in the cohort cRV=="false" than =="true".  And, there are many more observations with lifetimes in the middle of the range than at the ends.  I suspect that this is a common phenomenon. 


When I plot the two hazard rate curves, haz1 looks very different than haz2, but I'd like to see if it's different enough.  How can I go about creating confidence intervals and plotting them? 


Thanks, 
Alan 

-- 
Alan Cox 
Director, User Experience 
iContact, Corp. 
p 919.459.1038 f 919.287.2475 

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