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Looking at test set with only two points, "standard" r2 calculation with sklearn's metrics.r2_score is giving a negative value when qualitative visual analysis suggests it should give a positive value. Error seen on James' data set.
Looking at test set with only two points, "standard" r2 calculation with sklearn's metrics.r2_score is giving a negative value when qualitative visual analysis suggests it should give a positive value. Error seen on James' data set.