[Limdep Nlogit List] Help to estimate equality constrained latent class model
Thomas Eagle
teagle at tceagle.com
Fri Mar 17 14:16:36 AEDT 2017
Why do you want to constrain all parameters across 8 of the classes, set a
different to zero in the first 8, and all parameters to be zero in the last
class? What kind of latent class model is that? The purpose of a latent
class choice model is to find different groups of respondents who have
differing parameter values across classes? Usually one fits an
unconstrained LC choice model and then imposes constraints to make the model
more parsimonious.
I can see some simplified constraints to force a type of mover-stayer model,
but I cannot fathom the model you are trying to fit...
Tom Eagle
-----Original Message-----
From: Limdep [mailto:limdep-bounces at limdep.itls.usyd.edu.au] On Behalf Of S
Tarfasa via Limdep
Sent: Thursday, March 16, 2017 2:33 PM
To: limdep at limdep.itls.usyd.edu.au
Cc: S Tarfasa <gutamajale at gmail.com>
Subject: [Limdep Nlogit List] Help to estimate equality constrained latent
class model
Dear All,
Would anyone help me estimate equality constraint latent class model as I
was challenged doing it?
I have 9 classes where some respondents ignored one attribute,others all
attributes and the remaining ignored none.I keep getting error when I run
the following syntxa butI couldn't figure it out.
Any help is highly appreciated.
Error 451: Expected 27 specifications in RST/CML list. Found 72.
Error 1071: Found an error in your ;RST setup. Please check.
Error 1071: Found an error in your ;RST setup. Please check.
Best,
LCLOGIT
;LHS=CHOICE
;CHOICES=1,2,3
;MODEL:
U(1,2,3)=BPAY*PAYMENT+BCOV*COVER2+BCEM*CEME+BLAB*LABOR+BCAP*CAP1000+BDUR*DUR
ATION+BRGVT*RGVT+ASC
;PTS=9
;PDS=10
;rst=bpay,bcov,bcem,blab,bcap,bdur,brgvt,ASC,
bpay,bcov,bcem,blab,bcap,bdur,0,ASC,
bpay,bcov,bcem,blab,bcap,0,brgvt,ASC,
bpay,bcov,bcem,blab,0,bdur,brgvt,ASC,
bpay,bcov,bcem,0,bcap,bdur,brgvt,ASC,
bpay,bcov,0,blab,bcap,bdur,brgvt,ASC,
bpay,0,bcem,blab,bcap,bdur,brgvt,ASC,
0,bcov,bcem,blab,bcap,bdur,brgvt,ASC,
0,0,0,0,0,0,0,0$
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