Re: NM mixture model with three subgroups
From: brendan.m.johnson@gsk.com
Subject: Re: [NMusers] NM mixture model with three subgroups
Date: Mon, 19 Dec 2005 11:27:15 -0500
Hi Tsang-Bin,
I recently had need for a 3 subpopulation model, and used the following
$MIX
;TRIMODAL:
NSPOP=3
EXTH10=EXP(THETA(10))
LGT1=EXTH10/(1+EXTH10)
P(1)=LGT1
EXTH11=EXP(THETA(11))
LGT2=EXTH11/(1+EXTH11)
P(2)=LGT2*(1-P(1))
P(3)=1-P(1)-P(2)
you can then apply your conditional statements in a similar fashion to the 2 population model
Brendan
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Brendan Johnson, Ph.D.
Clinical Pharmacokinetics/Modeling & Simulation
GlaxoSmithKline
Ph: +1 919 483 0672
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