unable to invert xtx

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ali482002
Posts: 39
Joined: Fri Jan 30, 2015 7:14 am

unable to invert xtx

Post by ali482002 »

Hi Dear all

I'm trying to run a two level model in runmlwin, but I get the following message error:

"error while obeying batch file
c:\user|...|temp\ST_02000008.temp at line number 2087: WEST
unable to invert xtx"

What does it mean? and What should i do? Please help
Regards
Ali
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ChrisCharlton
Posts: 1353
Joined: Mon Oct 19, 2009 10:34 am

Re: unable to invert xtx

Post by ChrisCharlton »

Could you post the syntax for the model that is causing this error? One possible reason for this message would be if the variables in your model were collinear.
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GeorgeLeckie
Site Admin
Posts: 432
Joined: Fri Apr 01, 2011 2:14 pm

Re: unable to invert xtx

Post by GeorgeLeckie »

Hi Ali,

An example of when this occurs is when using Stata's i. factor notation with runmlwin models fitted by MCMC

Best wishes

George
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