[R] Request for Gamma Frailty Simulation
m.rahgozar at uswr.ac.ir
Wed Dec 1 05:54:13 CET 2004
I need to use " Gamma Frailty Model " in a simulation study ,so I
should replicate the program many times and get estimates of
" THETA and its Variance " or "Variance-Covariance" matrix Or
Variace of random effect in Gamma frailty model in Survival analysis
at each time of replication.
But when I use " $frail " and " $Var " and "$THETA " to retrieve
the estimate of THETA and its Variance for each replicate , I get NULL
response and when I use " $coef " I retrieve the coeficients only but
not THETA and its Variance.
Since I need to get THETA and its Variance at each time of replication
so I need to know the name of these variables as used in the source
I would be very grateful if you could kindly guide and help me to use
appropriate statment to get the name of required varibles used in the
source program or if you could introduce me to anybody that could help
Thanks a lot in advance .
With The Best Regards ,
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