Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/4811#discussion_r25544222
--- Diff: python/pyspark/mllib/util.py ---
@@ -168,6 +168,64 @@ def loadLabeledPoints(sc, path, minPartitions=None):
return callMLlibFunc("loadLabeledPoints", sc, path, minPartitions)
+class Saveable(object):
+ """
+ Mixin for models and transformers which may be saved as files.
+ """
+
+ def save(self, sc, path):
+ """
+ Save this model to the given path.
+
+ This saves:
+ * human-readable (JSON) model metadata to path/metadata/
+ * Parquet formatted data to path/data/
+
+ The model may be loaded using py:meth:`Loader.load`.
+
+ :param sc: Spark context used to save model data.
+ :param path: Path specifying the directory in which to save
--- End diff --
We should probably note that this will fail if the path already exists. (I
forgot to note this in modelSaveLoad.scala too.)
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