gaussian mixture model

[OriolAbril]

File: https://github.com/pymc-devs/pymc-examples/blob/main/examples/mixture_models/gaussian_mixture_model.ipynb
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[drbenvincent]

This could be updated to use new pm.Mixture

[drbenvincent]

Any reason why the cluster means can't use pymc.distributions.transforms.Ordered?

[drbenvincent]

Actually, anyone mind if I update this with pm.NormalMixture? We can get some significant simplification of this notebook.

[OriolAbril]

That sounds amazing and things like that are the reason there is a v4 (auto) and a Done category in the tracker project that are clearly separated. It wasn't the case, but this notebook might have run when changing import pymc3 to import pymc and theano to aesara, but that a notebook runs on v4 doesn't mean it is updated to be documentation for v4.

I am not sure how much of that was already available in latest v3 releases, but the issue is the same. A notebook is added to cover and explain a specific use case, a while later we see (or have time to implement) a way to make that case better and easier, but when the feature is added to pymc, the notebook is not updated. When that happens many users won't be aware the new feature exists, and others might now but be unable to use it without an example notebook so the new feature ends up being underused and the old but well documented way of doing things prevails.

[drbenvincent]

Great. Will put in a PR soon.

[drbenvincent]

Moving this in the notebook state tracker from 'todo' to 'done'. And closing issue