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Shayaan95
Shayaan95
Level II

What is meant by -2*LogLikelihood in Gaussian Process model report?

Created: Jun 7, 2020 03:44 PM  |  Last Modified: Jun 8, 2023 5:16 PM (1767 views)

I am applying Gaussian process model to my data set. But wondering what are the mathematical meanings of this -2LL (-2*LogLikelihood) term? Is there any formula for this (literature)?
I have searched in literature, I only found negative logLikelihood instead of -2*LL. Why JMP take twice of negative?

 

JMPqq.PNG

 

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Accepted Solutions
Jeff_Perkinson
Community Manager Jeff_Perkinson
Community Manager Community Manager
Solution

Re: What is meant by -2*LogLikelihood in Gaussian Process model report?

Jun 7, 2020 04:16 PM (1754 views)  |  Posted in reply to message from Shayaan95 06-07-2020

This page explains what and why the -LogLikelihood (and -2LogLikelihood) is used. 

-Jeff

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2 REPLIES 2
Jeff_Perkinson
Community Manager Jeff_Perkinson
Community Manager Community Manager
Solution

Re: What is meant by -2*LogLikelihood in Gaussian Process model report?

Jun 7, 2020 04:16 PM (1755 views)  |  Posted in reply to message from Shayaan95 06-07-2020

This page explains what and why the -LogLikelihood (and -2LogLikelihood) is used. 

-Jeff
Shayaan95
Shayaan95
Level II

Re: What is meant by -2*LogLikelihood in Gaussian Process model report?

Jun 7, 2020 04:22 PM (1749 views)  |  Posted in reply to message from Jeff_Perkinson 06-07-2020
Thanks