Question
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!
Expert Answer
John Michell
PhD Expert
Answered Aug 15, 2026
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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