[SPARK 9902] [MLlib] Add Java and Python examples to user guide for 1-sample KS test

[josepablocam]

added doc examples for python.

[mengxr]

add to whitelist

[mengxr]

ok to test

[SparkQA]

Test build #40850 has finished for PR 8154 at commit 1bad75f.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[mengxr]

data = sc.parallelize([1.0, 2.0, ...]) should be sufficient.

[mengxr]

@josepablocam For Java example, you can check the code here: https://github.com/apache/spark/blob/master/mllib/src/test/java/org/apache/spark/mllib/stat/JavaStatisticsSuite.java#L63.

[josepablocam]

@mengxr added Java example now, thanks!

[SparkQA]

Test build #40928 has finished for PR 8154 at commit b914058.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds the following public classes (experimental):
  • class StringIndexerModel (
  • implicit class StringToColumn(val sc: StringContext)

[mengxr]

minor: We can use Arrays.asList to replace Lists.newArrayList. The former is from Java core, which doesn't require additional dependencies. Then we can replace import com.google.common.collect.Lists; by import java.util.Arrays;. Btw, please insert an empty line between Java imports and Spark imports.

[mengxr]

LGTM except minor inline comments.

[josepablocam]

@mengxr thanks for the feedback. Fixed

[mengxr]

LGTM. Merged into master and branch-1.5. Thanks! (Skipped Jenkins because this is doc-only.)

[SparkQA]

Test build #41086 has finished for PR 8154 at commit 7763712.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.