v1.1.1

[yzhao062]

All Submissions Basics:

• [ ] Have you followed the guidelines in our Contributing document?
• [ ] Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• [ ] Have you checked all Issues to tie the PR to a specific one?

All Submissions Cores:

• [ ] Have you added an explanation of what your changes do and why you'd like us to include them?
• [ ] Have you written new tests for your core changes, as applicable?
• [ ] Have you successfully ran tests with your changes locally?
• [ ] Does your submission pass tests, including CircleCI, Travis CI, and AppVeyor?
• [ ] Does your submission have appropriate code coverage? The cutoff threshold is 95% by Coversall.

New Model Submissions:

• [ ] Have you created a .py in ~/pyod/models/?
• [ ] Have you created a _example.py in ~/examples/?
• [ ] Have you created a test_.py in ~/pyod/test/?
• [ ] Have you lint your code locally prior to submission?

[coveralls]

Pull Request Test Coverage Report for Build 6636775249

• 252 of 261 (96.55%) changed or added relevant lines in 2 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage increased (+0.1%) to 93.718%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pyod/test/test_dif.py	86	87	98.85%
pyod/models/dif.py	166	174	95.4%
<!--	Total:	252	261	96.55%	-->

Files with Coverage Reduction	New Missed Lines	%
pyod/models/sampling.py	1	97.87%
<!--	Total:	1		-->

Totals
Change from base Build 5567135225:	0.1%
Covered Lines:	9011
Relevant Lines:	9615

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💛 - Coveralls