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afsc-assessments / spmR

Projection model for evaluating outcomes of catch control rules for Alaska groundfish
http://afsc-assessments.github.io/spmR/
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Explore alternative likelihoods for recruitments #2

Open Cole-Monnahan-NOAA opened 4 years ago

Cole-Monnahan-NOAA commented 4 years ago

It may be interesting/prudent to explore the consequences of using the inverse Gaussian distribution. Grant says this has come up at the SSC before.

jimianelli commented 4 years ago

The distribution used (inverse gaussian) was for simulations based on mean and variance estimates of input recruits. It would be interesting to examine alternatives for simulations, but just to clarify there is no likelihood estimation involved (unless including an SRR in which case lognormal is used in fitting.

jimianelli commented 2 years ago

And to be clear, these are for simulation purposes, not exactly "likelihoods"