Allow for Nans in input of Permutation Importance

[Matgrb]

Closes #262

So far i used force_all_finite=False, but even better would be force_all_finite='allow-nan'. But for that I would also need to increase sklearn version in the requirements to at least 0.20.

[codecov-commenter]

Codecov Report

Merging #381 into master will decrease coverage by 16.74%. The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           master     #381       +/-   ##
===========================================
- Coverage   97.32%   80.58%   -16.75%     
===========================================
  Files          49       49               
  Lines        3142     3142               
  Branches      585      585               
===========================================
- Hits         3058     2532      -526     
- Misses         44      569      +525     
- Partials       40       41        +1     

Impacted Files	Coverage Δ
eli5/sklearn/permutation_importance.py	93.68% <100.00%> (-6.32%)	:arrow_down:
eli5/keras/gradcam.py	0.00% <0.00%> (-100.00%)	:arrow_down:
eli5/xgboost.py	4.26% <0.00%> (-95.13%)	:arrow_down:
eli5/formatters/image.py	5.47% <0.00%> (-94.53%)	:arrow_down:
eli5/keras/explain_prediction.py	4.81% <0.00%> (-91.57%)	:arrow_down:
eli5/lightgbm.py	4.27% <0.00%> (-90.60%)	:arrow_down:
eli5/catboost.py	11.53% <0.00%> (-88.47%)	:arrow_down:
eli5/_decision_path.py	35.48% <0.00%> (-64.52%)	:arrow_down:
eli5/keras/__init__.py	50.00% <0.00%> (-50.00%)	:arrow_down:
eli5/ipython.py	85.71% <0.00%> (-14.29%)	:arrow_down:
... and 5 more

[Matgrb]

This PR is ready for review

[codecov-io]

Codecov Report

Merging #381 (fc22f65) into master (017c738) will decrease coverage by 16.74%. The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           master     #381       +/-   ##
===========================================
- Coverage   97.32%   80.58%   -16.75%     
===========================================
  Files          49       49               
  Lines        3142     3142               
  Branches      585      585               
===========================================
- Hits         3058     2532      -526     
- Misses         44      569      +525     
- Partials       40       41        +1     

Impacted Files	Coverage Δ
eli5/sklearn/permutation_importance.py	93.68% <100.00%> (-6.32%)	:arrow_down:
eli5/keras/gradcam.py	0.00% <0.00%> (-100.00%)	:arrow_down:
eli5/xgboost.py	4.26% <0.00%> (-95.13%)	:arrow_down:
eli5/formatters/image.py	5.47% <0.00%> (-94.53%)	:arrow_down:
eli5/keras/explain_prediction.py	4.81% <0.00%> (-91.57%)	:arrow_down:
eli5/lightgbm.py	4.27% <0.00%> (-90.60%)	:arrow_down:
eli5/catboost.py	11.53% <0.00%> (-88.47%)	:arrow_down:
eli5/_decision_path.py	35.48% <0.00%> (-64.52%)	:arrow_down:
eli5/keras/__init__.py	50.00% <0.00%> (-50.00%)	:arrow_down:
eli5/ipython.py	85.71% <0.00%> (-14.29%)	:arrow_down:
... and 5 more

[Matgrb]

Hi @lopuhin , sorry for the delay. I have implemented the suggestions from your comment.

[lopuhin]

Thanks you! This were merged in eli5-org/eli5#2 and released to PyPI with v0.11