Simple: despite its name R2 is not a square. Look up its definition. On Wed, 11 Aug 2021, 21:17 Samir K Mahajan, <samirkmahajan1...@gmail.com> wrote:
> Dear All, > I am amazed to find negative values of sklearn.metrics.r2_score and > sklearn.metrics.explained_variance_score in a model ( cross validation of > OLS regression model) > However, what amuses me more is seeing you justifying negative > 'sklearn.metrics.r2_score ' in your documentation. This does not > make sense to me . Please justify to me how squared values are negative. > > Regards, > Samir K Mahajan. > > _______________________________________________ > scikit-learn mailing list > scikit-learn@python.org > https://mail.python.org/mailman/listinfo/scikit-learn >
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