Github user yu-iskw commented on the pull request:
https://github.com/apache/spark/pull/8643#issuecomment-140981031
@jkbradley thank you for the comment. Just to be sure,
`LDAModelWrapper`.`describeTopics()` should return a DataFrame and then extract
the return value from the DataFrame in pyspark, right?
If so, I'm not sure about that. It looks a little strange for me to use
APIs related to DataFrame under spark.mllib.
@davies what do you think?
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