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Comparing -2LL, AIC, BIC for modeling using FOCE-I and QRPEM

NLME QRPEM FOCE-ELS

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#1 Erik.Hahn

Erik.Hahn

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Posted 01 September 2020 - 08:57 PM

Hello,

 

Can I use AIC or BIC to compare identical models that used FOCE-I for one run and QRPEM for another run? 

 

Can I use AIC or BIC to compare non-nested models?

 

Thanks,

Erik 



#2 bwendt@certara.com

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Posted 02 September 2020 - 12:40 PM

Erik,

 

I checked with our dev team and they confirmed:
 
it is not feasible to compare the -2LL given by different algorithms (QRPEM and FOCE) due to different methods of LL compuation.
 
However, you can use AIC or BIC to compare non-nested models, provided the same engine with the same options are used.
 
Hope, this helps.
 
Bernd






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