add warning for degenerate diffusion operator #171
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Pull Request Test Coverage Report for Build 19182400153Details
💛 - Coveralls |
Removed debug print statement from MDS function.
Pull Request Test Coverage Report for Build 19371928356Details
💛 - Coveralls |
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Added graceful error handling for degenerate distance matrices in PHATE's MDS embedding step. When KNN is close to dataset size, diffusion homogeneity causes all-zero distance matrices. Instead of crashing with Procrustes error, now returns zero embedding with RuntimeWarning explaining the hyperparameter issue.