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[SPARK-11610][MLlib][Python][Docs] Make the docs of LDAModel.describeTopics in Python more specific #9577

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[SPARK-11610][MLlib][Python][Docs] Make the docs of LDAModel.describeTopics in Python more specific #9577

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6 changes: 6 additions & 0 deletions python/pyspark/mllib/clustering.py
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Expand Up @@ -734,6 +734,12 @@ def describeTopics(self, maxTermsPerTopic=None):
"""Return the topics described by weighted terms.

WARNING: If vocabSize and k are large, this can return a large object!

:param maxTermsPerTopic: Maximum number of terms to collect for each topic.
(default: vocabulary size)
:return: Array over topics. Each topic is represented as a pair of matching arrays:
(term indices, term weights in topic).
Each topic's terms are sorted in order of decreasing weight.
"""
if maxTermsPerTopic is None:
topics = self.call("describeTopics")
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