[R] Estimate hazard function from right-censored data only

John Fox jfox at mcmaster.ca
Wed Nov 5 03:23:59 CET 2003

Dear Monica,

I'm not sure what the muhaz function is (it's not in the survival package), 
but regardless, unless I'm seriously mistaken, there's no information to 
estimate the hazard function if you haven't observed any events.

I hope that this helps,

At 08:10 PM 11/4/2003 -0500, Monica L. Parra Torrado wrote:
>Dear All,
>I would like to ask if it is possible to estimate a hazard function using 
>the muhaz command when all the data is right-censored.  My data has 
>information of the number of weeks people has been unemployed but all of 
>them are unemployed at the date of the survey, that is, I cannot observed 
>when the individuals leave the unemployment state.
>I appreciate your help,
>Monica L.
>R-help at stat.math.ethz.ch mailing list

John Fox
Department of Sociology
McMaster University
Hamilton, Ontario, Canada L8S 4M4
email: jfox at mcmaster.ca
phone: 905-525-9140x23604
web: www.socsci.mcmaster.ca/jfox

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