rapidsai/cudf
Voir sur GitHub[FEA] Exploit Symmetry for `groupby.corr` and `groupby.cov`
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#10 098 ouverte le 20 janv. 2022
Pythonfeature requestgood first issue
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Description
In https://github.com/rapidsai/cudf/pull/9889#discussion_r771493338, @bdice made an observation that due to symmetry, there's a chance of utilizing that to reduce computation by only applying the upper half of the matrix. In an attempt to reduce the scope of the PR, this is the issue that tracks the suggestion separately. If applicable, groupby.corr should also share the logic.
cc @skirui-source