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st: syntax for random parameter in gllamm mlogit


From   SC Wainwright <s9907040@sms.ed.ac.uk>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: syntax for random parameter in gllamm mlogit
Date   Tue, 01 Nov 2005 14:16:33 +0000

hello statalist,

i have a fairly specific question regarding the correct syntax when using the
expand option with gllamm for trinomial problem, estimation takes a couple of
days:

when i choose m in expand(patt chosen m) option all fixed coefficients are
estimated for each alternative automatically.

how do i also obtain a random parameter for each alternative, say for my dummy
explanatory variable female ?

is it ;
eq femalea2:a2*female
eq femalea3:a3*female
gllamm alt explan variables here, expand(patt chosen m) i(caseidmumnumeric) /*
*/ lin(mlogit) family(binomial) nrf(4) eqs(a2 a3 femalea2 femalea3) nip(4)/*
*/ trace adapt


kind thanks
claire wainwright



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