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Author SHA1 Message Date
WeichenXu 59c3c233f4 [SPARK-23254][ML] Add user guide entry and example for DataFrame multivariate summary 
## What changes were proposed in this pull request?

Add user guide and scala/java/python examples for `ml.stat.Summarizer`

## How was this patch tested?

Doc generated snapshot:

![image](https://user-images.githubusercontent.com/19235986/38987108-45646044-4401-11e8-9ba8-ae94ba96cbf9.png)
![image](https://user-images.githubusercontent.com/19235986/38987096-36dcc73c-4401-11e8-87f9-5b91e7f9e27b.png)
![image](https://user-images.githubusercontent.com/19235986/38987088-2d1c1eaa-4401-11e8-80b5-8c40d529a120.png)
![image](https://user-images.githubusercontent.com/19235986/38987077-22ce8be0-4401-11e8-8199-c3a4d8d23201.png)

Author: WeichenXu <weichen.xu@databricks.com>

Closes #20446 from WeichenXu123/summ_guide.
 2018-07-11 13:56:09 -05:00
Yanbo Liang 697a5e5517 [SPARK-20505][ML] Add docs and examples for ml.stat.Correlation and ml.stat.ChiSquareTest. 
## What changes were proposed in this pull request?
Add docs and examples for ```ml.stat.Correlation``` and ```ml.stat.ChiSquareTest```.

## How was this patch tested?
Generate docs and run examples manually, successfully.

Author: Yanbo Liang <ybliang8@gmail.com>

Closes #17994 from yanboliang/spark-20505.
 2017-05-18 11:54:09 +08:00