[R] Looking to maximize a conditional likelihood

Peter Dalgaard BSA p.dalgaard at biostat.ku.dk
Thu Jul 17 23:34:13 CEST 2003

Ross Boylan <ross at biostat.ucsf.edu> writes:

> I want to maximize a conditional likelihood function that is basically
> logistic conditional on the number of successes within strata.  What
> would be a good starting place for this?  A complication is that the
> denominator includes a term that is the sum over all permutations.
> Although there is no time dimension to the problem, it's possible a
> degenerate use of the Cox proportional hazards model (in the survival
> package of 1.7) will do what I want.

Did you check out clogit from the same package?

   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907

More information about the R-help mailing list