https://community.jmp.com/t5/Discussions/What-is-meant-by-2-LogLikelihood-in-Gaussian-Process-model/m-p/271201#M52780 <P>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)?<BR />I have searched in literature, I only found negative logLikelihood instead of -2*LL. Why JMP take twice of negative?</P> <P>&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="JMPqq.PNG" style="width: 400px;"><img src="https://community.jmp.com/t5/image/serverpage/image-id/24436iC44A85F278D6025A/image-size/medium?v=v2&amp;px=400" role="button" title="JMPqq.PNG" alt="JMPqq.PNG" /></span></P> <P> </P> Fri, 09 Jun 2023 00:16:57 GMT Shayaan95 2023-06-09T00:16:57Z https://community.jmp.com/t5/Discussions/What-is-meant-by-2-LogLikelihood-in-Gaussian-Process-model/m-p/271201#M52780 <P>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)?<BR />I have searched in literature, I only found negative logLikelihood instead of -2*LL. Why JMP take twice of negative?</P> <P>&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="JMPqq.PNG" style="width: 400px;"><img src="https://community.jmp.com/t5/image/serverpage/image-id/24436iC44A85F278D6025A/image-size/medium?v=v2&amp;px=400" role="button" title="JMPqq.PNG" alt="JMPqq.PNG" /></span></P> <P> </P> Fri, 09 Jun 2023 00:16:57 GMT https://community.jmp.com/t5/Discussions/What-is-meant-by-2-LogLikelihood-in-Gaussian-Process-model/m-p/271201#M52780 Shayaan95 2023-06-09T00:16:57Z https://community.jmp.com/t5/Discussions/What-is-meant-by-2-LogLikelihood-in-Gaussian-Process-model/m-p/271224#M52783 <P><A href="https://www.jmp.com/support/help/en/15.1/index.shtml#page/jmp/likelihood-aicc-and-bic.shtml" target="_self">This page</A>&nbsp;explains what and why the -LogLikelihood (and -2LogLikelihood) is used.&nbsp;</P> Sun, 07 Jun 2020 20:16:39 GMT https://community.jmp.com/t5/Discussions/What-is-meant-by-2-LogLikelihood-in-Gaussian-Process-model/m-p/271224#M52783 Jeff_Perkinson 2020-06-07T20:16:39Z https://community.jmp.com/t5/Discussions/What-is-meant-by-2-LogLikelihood-in-Gaussian-Process-model/m-p/271231#M52785 Thanks<BR /> Sun, 07 Jun 2020 20:22:12 GMT https://community.jmp.com/t5/Discussions/What-is-meant-by-2-LogLikelihood-in-Gaussian-Process-model/m-p/271231#M52785 Shayaan95 2020-06-07T20:22:12Z