Fix incorrect signed noise terms for DiscreteAdditiveNoiseModel #1260
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Hello,
I believe the noise terms for the DiscreteAdditiveNoiseModel are being computed with the wrong sign. The noise terms are added to the predicted value, therefore they should be computed by subtracting the predicted value from the true value. Currently, they are computed the other way, which would lead the noise distribution to be incorrect. They are computed correctly in the PostlinearNoiseModel implementation; I've updated the DiscreteAdditiveNoiseModel to function the same.