update the default value of jitter to JITTER_DEFAULT

[danhphan]

This PR makes a minor change in gp models by setting the default value of jitter to JITTER_DEFAULT, instead of 0.0.

This could reduce the number of errors (like positive definite errors) when calling conditional functions.

I am not sure, but I'm not aware if there is any cases that the default jitter of 0.0 will be useful for end users. Please confirm if I'm wrong. Thank you.

[codecov]

Codecov Report

Merging #6055 (e5504ed) into main (52f8673) will increase coverage by 1.56%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #6055      +/-   ##
==========================================
+ Coverage   87.52%   89.09%   +1.56%     
==========================================
  Files          72       72              
  Lines       12924    12924              
==========================================
+ Hits        11312    11514     +202     
+ Misses       1612     1410     -202     

Impacted Files	Coverage Δ
pymc/gp/gp.py	93.18% <100.00%> (ø)
pymc/step_methods/hmc/base_hmc.py	90.55% <0.00%> (+0.78%)	⬆️
pymc/parallel_sampling.py	86.79% <0.00%> (+0.99%)	⬆️
pymc/sampling_jax.py	97.05% <0.00%> (+97.05%)	⬆️

[danhphan]

Hi, not sure why pymc/tests/test_sampling_jax.py not passed. It seems running alright at my local machine.

[bwengals]

Reran the other build that failed, it passes now. The readthedocs build is failing I think because of the same issue upstream with jax that has since been fixed. Is there a way to rerun it to verify? I don't see anything in this PR that might cause an issue with docs.

It looks possible but maybe the feature is too new. I may not see a rebuild button because I'm not an admin on RTD, maybe @OriolAbril can see a rebuild button, if you have a sec?

[OriolAbril]

asked for a rebuild, if it doesn't work it probably needs a rebase

[bwengals]

Thanks for running that @OriolAbril, looks like everythings green now!

[bwengals]

lgtm, and thanks for fixing this @danhphan this will prevent a lot of unnecessary errors for people trying to use this

[danhphan]

Hi, thanks @bwengals and @OriolAbril :)

[danhphan]

Hi, thanks @michaelosthege