[Spark-8530] [ML] add python API for MinMaxScaler

[hhbyyh]

jira: https://issues.apache.org/jira/browse/SPARK-8530

add python API for MinMaxScaler
jira for MinMaxScaler: https://issues.apache.org/jira/browse/SPARK-7514

[SparkQA]

Test build #36235 has finished for PR 7150 at commit 77f57ef.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds the following public classes (experimental):
  • case class Heartbeat(workerId: String, worker: RpcEndpointRef) extends DeployMessage
  • case class RegisteredWorker(master: RpcEndpointRef, masterWebUiUrl: String) extends DeployMessage
  • case class RegisterApplication(appDescription: ApplicationDescription, driver: RpcEndpointRef)
  • case class RegisteredApplication(appId: String, master: RpcEndpointRef) extends DeployMessage
  • case class SubmitDriverResponse(
  • case class KillDriverResponse(
  • case class MasterChanged(master: RpcEndpointRef, masterWebUiUrl: String)
  • class MinMaxScaler(JavaEstimator, HasInputCol, HasOutputCol):
  • class MinMaxScalerModel(JavaModel):

[jkbradley]

reviewing now

[jkbradley]

Please keep sorted

[jkbradley]

This looks good, except for those tiny items & merge conflicts.

[jkbradley]

Hm, the generated doc also looks odd b/c of the Latex not being render as Latex. Does the math markup element work? [http://sphinx-doc.org/ext/math.html]

[SparkQA]

Test build #41206 has finished for PR 7150 at commit 7b97e6a.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds the following public classes (experimental):
  • class MinMaxScaler(JavaEstimator, HasInputCol, HasOutputCol):
  • class MinMaxScalerModel(JavaModel):

[hhbyyh]

@jkbradley Sorry for the late update. I got some internet issues and cannot install Sphinx for now, so I simplified the comments. Let me know if it's not clear enough.

[jkbradley]

mark with .. note:: Experimental

[jkbradley]

@hhbyyh Can you please fix the merge conflicts? I have time to get this merged now. Thanks!

[SparkQA]

Test build #42237 has finished for PR 7150 at commit 9785b56.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds the following public classes (experimental):
  • class MinMaxScaler(JavaEstimator, HasInputCol, HasOutputCol):
  • class MinMaxScalerModel(JavaModel):
  • class VectorSlicer(JavaTransformer, HasInputCol, HasOutputCol):

[hhbyyh]

@jkbradley Updated according to the comments. Thanks for helping review.

[jkbradley]

LGTM. Merging with master. Thanks!