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Huaxin Gao 37690dea10 [SPARK-29565][ML][PYTHON] OneHotEncoder should support single-column input/output 
### What changes were proposed in this pull request?
add single-column input/ouput support in OneHotEncoder

### Why are the changes needed?
Currently, OneHotEncoder only has multi columns support.  It makes sense to support single column as well.

### Does this PR introduce any user-facing change?
Yes
```OneHotEncoder.setInputCol```
```OneHotEncoder.setOutputCol```

### How was this patch tested?
Unit test

Closes #26265 from huaxingao/spark-29565.

Authored-by: Huaxin Gao <huaxing@us.ibm.com>
Signed-off-by: Liang-Chi Hsieh <liangchi@uber.com>
2019-10-28 23:20:21 -07:00
..
linalg [SPARK-28206][PYTHON] Remove the legacy Epydoc in PySpark API documentation 2019-07-05 10:08:22 -07:00
param [SPARK-29093][PYTHON][ML] Remove automatically generated param setters in _shared_params_code_gen.py 2019-10-28 11:36:10 +08:00
tests [SPARK-29093][PYTHON][ML] Remove automatically generated param setters in _shared_params_code_gen.py 2019-10-28 11:36:10 +08:00
__init__.py [SPARK-24477][SPARK-24454][ML][PYTHON] Imports submodule in ml/__init__.py and add ImageSchema into __all__ 2018-06-08 09:32:11 -07:00
base.py [SPARK-29093][PYTHON][ML] Remove automatically generated param setters in _shared_params_code_gen.py 2019-10-28 11:36:10 +08:00
classification.py [SPARK-29093][PYTHON][ML] Remove automatically generated param setters in _shared_params_code_gen.py 2019-10-28 11:36:10 +08:00
clustering.py [SPARK-29093][PYTHON][ML] Remove automatically generated param setters in _shared_params_code_gen.py 2019-10-28 11:36:10 +08:00
common.py [SPARK-17679] [PYSPARK] remove unnecessary Py4J ListConverter patch 2016-10-03 14:12:03 -07:00
evaluation.py [SPARK-29093][PYTHON][ML] Remove automatically generated param setters in _shared_params_code_gen.py 2019-10-28 11:36:10 +08:00
feature.py [SPARK-29565][ML][PYTHON] OneHotEncoder should support single-column input/output 2019-10-28 23:20:21 -07:00
fpm.py [SPARK-29093][PYTHON][ML] Remove automatically generated param setters in _shared_params_code_gen.py 2019-10-28 11:36:10 +08:00
image.py [SPARK-25382][SQL][PYSPARK] Remove ImageSchema.readImages in 3.0 2019-07-31 14:26:18 +09:00
pipeline.py [SPARK-17025][ML][PYTHON] Persistence for Pipelines with Python-only Stages 2017-08-11 23:57:08 -07:00
recommendation.py [SPARK-29093][PYTHON][ML] Remove automatically generated param setters in _shared_params_code_gen.py 2019-10-28 11:36:10 +08:00
regression.py [SPARK-29093][PYTHON][ML] Remove automatically generated param setters in _shared_params_code_gen.py 2019-10-28 11:36:10 +08:00
stat.py [SPARK-28855][CORE][ML][SQL][STREAMING] Remove outdated usages of Experimental, Evolving annotations 2019-09-01 10:15:00 -05:00
tree.py [SPARK-29116][PYTHON][ML] Refactor py classes related to DecisionTree 2019-10-12 22:13:50 +08:00
tuning.py [SPARK-29093][PYTHON][ML] Remove automatically generated param setters in _shared_params_code_gen.py 2019-10-28 11:36:10 +08:00
util.py [SPARK-28985][PYTHON][ML] Add common classes (JavaPredictor/JavaClassificationModel/JavaProbabilisticClassifier) in PYTHON 2019-09-19 08:17:25 -05:00
wrapper.py [SPARK-29464][PYTHON][ML] PySpark ML should expose Params.clear() to unset a user supplied Param 2019-10-17 17:02:31 -07:00