[SPARK-19234][MLLib] AFTSurvivalRegression should fail fast when any labels are zero#16652

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admackin wants to merge 6 commits intoapache:masterfrom

admackin:master

Commits on Jan 24, 2017

[SPARK-19234][MLLib] make sure label is positive for AFT regression

admackin
authored and
Andrew MacKinlay
committed
[SPARK-19234][MLLib] fix test suite to ensure no zero-labels get passed in test cases as they now throw errors

admackin
authored and
Andrew MacKinlay
committed
[SPARK-19234][MLLib] added test case to ensure fast failure on zero labels in AFT
Andrew MacKinlay
committed

Commits on Jan 30, 2017

[SPARK-19234][MLLib] added a clue about test failure per code-review suggestion
Andrew MacKinlay
committed
[SPARK-19234][MLLib] fixing indentation to match code guidelines
Andrew MacKinlay
committed
[SPARK-19234][MLLib] fixing imports to match scala style guidelines
Andrew MacKinlay
committed