Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/11125#discussion_r52684376
--- Diff: examples/src/main/python/mllib/naive_bayes_example.py ---
@@ -50,8 +61,17 @@ def parseLine(line):
# Make prediction and test accuracy.
predictionAndLabel = test.map(lambda p: (model.predict(p.features),
p.label))
accuracy = 1.0 * predictionAndLabel.filter(lambda (x, v): x ==
v).count() / test.count()
+ print('\n\tmodel accuracy %.4f\n' % accuracy)
# Save and load model
- model.save(sc, "target/tmp/myNaiveBayesModel")
- sameModel = NaiveBayesModel.load(sc, "target/tmp/myNaiveBayesModel")
+ output_dir = '/tmp/myNaiveBayesModel'
--- End diff --
This doesn't work because `/tmp` is not always available, which is why we
used `target/tmp`. Let's just assume that users run this example code under the
`spark/` folder, or we can document it in the usage.
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