yu peng created SPARK-19962:
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Summary: add DictVectorizor for DataFrame
Key: SPARK-19962
URL: https://issues.apache.org/jira/browse/SPARK-19962
Project: Spark
Issue Type: Wish
Components: ML
Affects Versions: 2.1.0
Reporter: yu peng
it's really useful to have something like
sklearn.feature_extraction.DictVectorizor
Since out features lives in json/data frame like format and
classifier/regressors only take vector input. so there is a gap between them.
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