WeichenXu123 commented on code in PR #43199:
URL: https://github.com/apache/spark/pull/43199#discussion_r1348200916
##########
python/pyspark/ml/connect/feature.py:
##########
@@ -256,3 +262,124 @@ def _load_core_model(self, path: str) -> None:
self.scale_values = sk_model.scale_
self.mean_values = sk_model.mean_
self.n_samples_seen = sk_model.n_samples_seen_
+
+
+class VectorAssembler(
+ Transformer,
+ HasInputCols,
+ HasOutputCol,
+ HasInputFeatureSizeList,
+ HasHandleInvalid,
+ ParamsReadWrite,
+):
+ """
+ A feature transformer that merges multiple input columns into a array type
column.
Review Comment:
this assembler output array type :) we don't need to keep exactly the same
behavior with old one.
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