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st: runmlwin error: duplicate fixed part
From
Susie Schaffnit <[email protected]>
To
[email protected]
Subject
st: runmlwin error: duplicate fixed part
Date
Thu, 30 Aug 2012 13:13:30 +0100
I am using the runmlwin command for a discrete-time event history analysis. My model includes several interaction terms. A few variables show up in more than one interaction.
When I run the model I receive this error regarding my variable called SES:
"SES SES are duplicated in the fixed part"
Oddly, SES is only one of multiple variables that is used in more than one interaction, so I am not sure why this variable is being singled out.
Here is an example of the command I am using:
runmlwin birthfiveyr2 cons i.yrsince##c.cohort c.prevchildren i.motherdead i.fatherdead ///
c.SES##i.liveswparents c.SES##i.partstat c.PartIn##i.yrsince i.actstat1 ///
i.aeduc1 i.yrsince##c.SES i.yrsince##i.actstat1, ///
level2 (acountry: cons) ///
level1 (yrsince:) ///
discrete (dist(binomial) link(logit) denom(cons)) ///
nogroup nopause
Does anyone have any idea why I am getting this error? If I run this as a simple regression it works just fine...
Thank you!
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