I set analysis_method = "CPLM".
INFO::Fitting model to feature number 1, Prevotella.pallens
Feature Prevotella.pallens : Model convergence problem; non-positive-definite Hessian matrix. See vignette('troubleshooting')
vignette('troubleshooting') leads to a page titled Troubleshooting Gargle Auth which is irrelevant to model fitting.
Hi Dario,
This problem is related to a convergence issue in the model that you are running. This can be due to a number of issues include insufficient data, highly sparse features/metadata, over parameterization, or potentially due to complete separability.
In general when running into this issue I would suggest looking at trying out a different model if the majority of taxa result in this issue. If it’s just a few then you can safely use the other models and depending on the result of the modeling with warnings you may be able to use those as well.
Thanks,
Jacob Nearing