Add ImproperUniform#85
Open
gvcallen wants to merge 1 commit into
Open
Conversation
Improper uniform distribution over the entire real line: unnormalized density of 1 everywhere, so log_prob is always 0. Infinite entropy; sampling, moments, and cdf-family methods are undefined and raise NotImplementedError since the distribution doesn't integrate to 1.
gvcallen
force-pushed
the
improper_uniform
branch
from
9dcfa11 to
323da46
Compare
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
This is the canonical "Identity distribution". I've found that I've needed it as a placeholder many times when dealing with complex PyTrees.
For example, in my library Parax (which uses
distreqx), you can attach distributions as metadata to PyTree nodes and then usingtree_jointto extract the joint distribution over the resultant PyTree. Without an "identity" distribution, users cannot have raw JAX array's and Parax variables alongside.