Nicholas Chammas created SPARK-19216:
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Summary: LogisticRegressionModel is missing getThreshold()
Key: SPARK-19216
URL: https://issues.apache.org/jira/browse/SPARK-19216
Project: Spark
Issue Type: Improvement
Components: ML, PySpark
Affects Versions: 2.1.0
Reporter: Nicholas Chammas
Priority: Minor
Say I just loaded a logistic regression model from storage. How do I check that
model's threshold in PySpark? From what I can see, the only way to do that is
to dip into the Java object:
{code}
model._java_obj.getThreshold())
{code}
It seems like PySpark's version of {{LogisticRegressionModel}} should include
this method.
Another issue is that it's not clear whether the threshold is for the raw
prediction or the probability. Maybe it's obvious to machine learning
practitioners, but I couldn't tell from reading the docs or skimming the code
what the threshold was for exactly.
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