Pearson correlation distance metric #2
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…elation against. All tests now passing.
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Hey,
this PR adds support for the Pearson correlation distance metric and distance metric test. This increases the usefulness of XPySOM for the application in computational biology where correlation metrics often outperform (see: FuseSOM, https://www.biorxiv.org/content/10.1101/2023.01.18.524659v2).
This PR should have no impact on users not looking to use the Pearson correlation distance metric. The argument name
correlationis in line with other packages in the broader ecosystem, e.g., RAPIDS.ai and scipy.If there are any issues or suggestions, I'll be happy to resolve them. We can always maintain the code separately but would be happy to re-integrate it into the library to increase discoverability.
Best regards,
Malte