Skip to content

Conversation

@michaelosthege
Copy link
Member

@michaelosthege michaelosthege commented Apr 13, 2025

Why & How

MvNormal was switched from SVD to Cholesky decomposition by default. This is brittle for many GPs, therefore PyMC > 5.22.0 will defaults Latent GP conditionals to method="svd" (via pymc-devs/pymc#7755).
The example notebook includes manually created MvNormals that also need method="svd" to work.

I also switched from numpyro back to the default sampler, because I couldn't install numpyro on my Windows.

See pymc-devs/pymc#7754.


📚 Documentation preview 📚: https://pymc-examples--784.org.readthedocs.build/en/784/

@review-notebook-app
Copy link

Check out this pull request on  ReviewNB

See visual diffs & provide feedback on Jupyter Notebooks.


Powered by ReviewNB

MvNormal was switched from SVD to Cholesky decomposition by default.
This is brittle for many GPs, therefore PyMC > 5.22.0 will defaults
Latent GP conditionals to `method="svd"`.
The example notebook includes manually created `MvNormal`s that
also need `method="svd"` to work.

I also switched from numpyro back to the default sampler,
because I couldn't install numpyro on my Windows.

See pymc-devs/pymc#7754.
Copy link
Collaborator

@juanitorduz juanitorduz left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

:)

@michaelosthege michaelosthege merged commit f001d88 into pymc-devs:main Nov 27, 2025
2 checks passed
@michaelosthege michaelosthege deleted the rerun-gp-latent branch November 27, 2025 15:37
@michaelosthege
Copy link
Member Author

that came by surprise, thanks @juanitorduz !

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants