  st: pgmhaz/hshaz output, why does it look like this?  From  
Hilde Karlsen <> Subject   st: pgmhaz/hshaz output, why does it
look like this? Date   Thu, 19 Feb 2009 10:30:50 +0100  Dear
statalisters,  I am having trouble understanding why the result
of my pgmhaz-command ends up like shown in the output below.
(Why are there "missing" values on several of the estimates?)
Does this imply I should not use pgmhaz for my discrete time
hazard analysis? I've tried hshaz, but it yielded the same
result. Moreover, constructing the baseline hazard in a
different manner (for example log(time), or creating finer time
units with dummy variables) also does not solve this problem. I
am trying to find out wether there is significant heterogeneity
in the data, and the first analysis (nocons) suggested
statistically significant frailty. Should I rather be using a
different command/program?  Here is my syntax and output; I hope
it is readable.   . pgmhaz  year1_4 year5_7 year8_10 male,
i(LPNR) s(year) d(movedout)  PGM hazard