0.10.2 cherry

[bashtage]

• closes #xxxx
• tests added / passed.
• code/documentation is well formatted.
• properly formatted commit message. See
  NumPy's guide.

Notes:

• It is essential that you add a test when making code changes. Tests are not
  needed for doc changes.
• When adding a new function, test values should usually be verified in another package (e.g., R/SAS/Stata).
• When fixing a bug, you must add a test that would produce the bug in master and
  then show that it is fixed with the new code.
• New code additions must be well formatted. Changes should pass flake8. If on Linux or OSX, you can
  verify you changes are well formatted by running

  git diff upstream/master -u -- "*.py" | flake8 --diff --isolated
  

  assuming flake8 is installed. This command is also available on Windows
  using the Windows System for Linux once flake8 is installed in the
  local Linux environment. While passing this test is not required, it is good practice and it help
  improve code quality in statsmodels.
• Docstring additions must render correctly, including escapes and LaTeX.

[coveralls]

Coverage decreased (-0.1%) to 84.946% when pulling 878d975 on bashtage:0.10.2-cherry into 3889c8d on statsmodels:maintenance/0.10.x.

[codecov]

Codecov Report

Merging #6269 into maintenance/0.10.x will decrease coverage by 0.16%.
The diff coverage is 19.03%.

@@                  Coverage Diff                   @@
##           maintenance/0.10.x    #6269      +/-   ##
======================================================
- Coverage               82.55%   82.38%   -0.17%     
======================================================
  Files                     598      599       +1     
  Lines                   94488    94992     +504     
  Branches                10424    10529     +105     
======================================================
+ Hits                    78005    78261     +256     
- Misses                  14060    14303     +243     
- Partials                 2423     2428       +5

Impacted Files	Coverage Δ
statsmodels/sandbox/stats/multicomp.py	40.6% <ø> (ø)	⬆️
statsmodels/iolib/smpickle.py	100% <ø> (ø)	⬆️
statsmodels/datasets/tests/test_utils.py	88.46% <ø> (ø)	⬆️
statsmodels/tools/docstring.py	0% <0%> (ø)
...models/tsa/statespace/tests/test_representation.py	99.37% <100%> (+0.04%)	⬆️
statsmodels/tsa/stattools.py	88.05% <100%> (+0.02%)	⬆️
statsmodels/tsa/statespace/mlemodel.py	86.23% <100%> (ø)	⬆️
statsmodels/tsa/tests/test_stattools.py	98.93% <100%> (ø)	⬆️
statsmodels/tsa/statespace/tests/test_mlemodel.py	100% <100%> (ø)	⬆️
statsmodels/stats/correlation_tools.py	90.59% <100%> (ø)	⬆️
... and 15 more

---

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[lgtm-com]

This pull request introduces 3 alerts when merging 878d975 into 3889c8d - view on LGTM.com

new alerts:

• 3 for Variable defined multiple times

[lgtm-com]

This pull request introduces 3 alerts when merging 0d48f24 into 3889c8d - view on LGTM.com

new alerts:

• 3 for Variable defined multiple times