Add ml_feature_importance() method for ml_model_xgboost_classification #21
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Close #16
Note that this requires to update xgboost4j-spark to at least 0.82 to use
Booster.getScore()
(c.f. dmlc/xgboost@431c850). So, I didinternal/xgboost4j-spark
xgboost4j-spark-0.82.jar
from Maven and place it in the directoryconfigure.R
but I don't include the updated
inst/java/sparkxgb-2.3-2.11.jar
because I'm not fully sure if I did the things right. Please let me know if I need to include them.Created on 2019-10-23 by the reprex package (v0.3.0)