[GitHub] spark pull request #13393: [SPARK-14615][ML][FOLLOWUP] Fix Python examples t...

[jkbradley <gi...@git.apache.org>]

Github user jkbradley commented on a diff in the pull request:

    https://github.com/apache/spark/pull/13393#discussion_r66687946
  
    --- Diff: examples/src/main/python/ml/aft_survival_regression.py ---
    @@ -19,7 +19,7 @@
     
     # $example on$
     from pyspark.ml.regression import AFTSurvivalRegression
    -from pyspark.mllib.linalg import Vectors
    +from pyspark.ml.linalg import Vectors
    --- End diff --
    
    Does this example run for you?  It seems broken (not due to your PR though).  Would you mind checking to identify the last time it worked?
    
    ```
    Traceback (most recent call last):                                              
      File "/Users/josephkb/spark/examples/src/main/python/ml/aft_survival_regression.py", line 49, in <module>
        model = aft.fit(training)
      File "/Users/josephkb/spark/python/lib/pyspark.zip/pyspark/ml/base.py", line 64, in fit
      File "/Users/josephkb/spark/python/lib/pyspark.zip/pyspark/ml/wrapper.py", line 213, in _fit
      File "/Users/josephkb/spark/python/lib/pyspark.zip/pyspark/ml/wrapper.py", line 210, in _fit_java
      File "/Users/josephkb/spark/python/lib/py4j-0.10.1-src.zip/py4j/java_gateway.py", line 933, in __call__
      File "/Users/josephkb/spark/python/lib/pyspark.zip/pyspark/sql/utils.py", line 79, in deco
    pyspark.sql.utils.IllegalArgumentException: u'requirement failed: The number of instances should be greater than 0.0, but got 0.'
    ```


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