Open pkdmark opened 3 years ago
Hello,
Problem can be reproduced with a slight modification to the notebook below:
https://github.com/stanfordmlgroup/ngboost/blob/master/examples/model_interpretation/SHAP_plots.ipynb
If the distribution is LogNormal (rather than normal) you will find that the Base Value + Shap Values of a single observation do not equal the prediction.
I had a similar issue with Gamma dist and I commented as #291 Hope it helps.
Hello,
Problem can be reproduced with a slight modification to the notebook below:
https://github.com/stanfordmlgroup/ngboost/blob/master/examples/model_interpretation/SHAP_plots.ipynb
If the distribution is LogNormal (rather than normal) you will find that the Base Value + Shap Values of a single observation do not equal the prediction.