Error when running experiment that uses SHAP tree explainer

[hjwilli]

Can be reproduced by running experiment classification data set with gradient boosting, decision tree, or random forest classifiers.

Error message:

Traceback (most Recent Call Last): File "driver.py", Line 78, In Main(args, Param Grid) File "driver.py", Line 72, In Main Param Grid=param Grid File "/appsrc/machine/learn/skl Utils.py", Line 445, In Generate Results Target) File "/appsrc/machine/learn/skl Utils.py", Line 741, In Plot Shap Analysis Curve Explainer = Shap.TreeExplainer(model) File "/usr/local/lib/python3.7/site Packages/shap/explainers/ Tree.py", Line 143, In Init Self.model = TreeEnsemble(model, Self.data, Self.data Missing, Model Output) File "/usr/local/lib/python3.7/site Packages/shap/explainers/ Tree.py", Line 759, In Init Self.trees = [SingleTree(e.tree , Scaling=model.learning Rate, Data=data, Data Missing=data Missing) For E In Model.estimators [:,0]] File "/usr/local/lib/python3.7/site Packages/shap/explainers/ Tree.py", Line 759, In Self.trees = [SingleTree(e.tree , Scaling=model.learning Rate, Data=data, Data Missing=data Missing) For E In Model.estimators [:,0]] File "/usr/local/lib/python3.7/site Packages/shap/explainers/ Tree.py", Line 1109, In Init Assert Import("cext") File "/usr/local/lib/python3.7/site Packages/shap/utils/ General.py", Line 23, In Assert Import Raise E File "/usr/local/lib/python3.7/site Packages/shap/explainers/ Tree.py", Line 23, In From .. Import Cext ImportError: Numpy.core.multiarray Failed To Import

Seems to be related to shap/shap#1895