HyukjinKwon commented on a change in pull request #30498:
URL: https://github.com/apache/spark/pull/30498#discussion_r532405657
##########
File path: python/pyspark/ml/functions.py
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@@ -69,6 +69,40 @@ def vector_to_array(col, dtype="float64"):
sc._jvm.org.apache.spark.ml.functions.vector_to_array(_to_java_column(col),
dtype))
+def array_to_vector(col):
+ """
+ Converts a column of array<NumericType> type into a column of MLlib dense
vectors
Review comment:
```suggestion
Converts a column of array of numeric type into a column of dense
vectors in MLlib
```
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