DOC Fix Matern kernel formula - #34283
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thomasjpfan
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Thank you for the PR @yuanx749 ! LGTM
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What does this implement/fix? Explain your changes.
Fixes a typo in the Matérn kernel formula for
nu=5/2. The quadratic term was missing a square.This matches the implementation:
scikit-learn/sklearn/gaussian_process/kernels.py
Lines 1727 to 1729 in e504dc6
where
distsis computed after scaling bylength_scale.