Bringing MeanResponseTransformer in line with the new testing set up.
Have noticed during this update that WeightColumnFitMixinTests and WeightColumnInitMixinTests might not be being used in other transformers we have already refactored so might be worth a quick audit.
WeightColumnFitMixinTests has a lot of calls to fit without a y argument. In this case this was making things fail as i would expect but i am a bit concerned that applying these tests to GroupRareLevelsTransformer in #259 appeared to work fine. Warrants a deeper look.
Bringing MeanResponseTransformer in line with the new testing set up.
Have noticed during this update that WeightColumnFitMixinTests and WeightColumnInitMixinTests might not be being used in other transformers we have already refactored so might be worth a quick audit.
WeightColumnFitMixinTests has a lot of calls to fit without a y argument. In this case this was making things fail as i would expect but i am a bit concerned that applying these tests to GroupRareLevelsTransformer in #259 appeared to work fine. Warrants a deeper look.