Github user sethah commented on a diff in the pull request:
https://github.com/apache/spark/pull/13557#discussion_r89817603
--- Diff: python/pyspark/ml/clustering.py ---
@@ -330,6 +357,20 @@ class KMeans(JavaEstimator, HasFeaturesCol,
HasPredictionCol, HasMaxIter, HasTol
>>> df = spark.createDataFrame(data, ["features"])
>>> kmeans = KMeans(k=2, seed=1)
>>> model = kmeans.fit(df)
+ >>> summary = model.summary
+ >>> summary.k
+ 2
+ >>> summary.predictionCol
--- End diff --
things like this are better left for the `tests.py` file, since this shows
up in the doc and might not be useful to users
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