Log likelihood

Nuchto - 2022-06-11T13:30:01+00:00

Question: Log likelihood

Hi!   I was wondering how to compute (which function to use) in Matlab the log likelihood but when the data is not normally distributed.   Thanks!

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Expert Answer

John Michell answered . 2025-11-20

If you have the most recent release of the Statistics Toolbox:

 

>> x = poissrnd(4,20,1);
>> pd = fitdist(x,'poisson');
>> pd.NLogL
ans =
   39.0221

If you do not:

>> mu = poissfit(x);
>> -sum(log(poisspdf(x,mu)))
ans =
   39.0221

 

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