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Like Stats and Bestfit
 
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Nishanth Sasankan



Joined: 07 Sep 2016
Posts: 26
Affiliation: university of notre dame

PostPosted: February 19 2018  Reply with quote

Hi
I am using the GetDistGUI and plotting a variable that I introduced. Shouldn't the bestfit for the variable be where the likelihood is maximum? The reason I ask is because, when i click on the like stat from the data tab, it gives me a different value away from the peak of the likelihood function.

Any insight would be helpful.

Thanks
Nishanth
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Antony Lewis



Joined: 23 Sep 2004
Posts: 1332
Affiliation: University of Sussex

PostPosted: February 19 2018  Reply with quote

The best fit only coincides with the peak of the marginalized probability if the full distribution is Gaussian (or more generally symmetric).

Note likestats is not the best fit - it's the best-fit sample (in high dimensions typically some way from the best fit).
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