Feature Block

[tweddielin]

This PR mainly is implementing both frontend and backend of feature distribution and linking with feature importance graph so that those two can interact with each other. By clicking the feature bar in feature importance, feature distribution will change. Pressing the toggle button will switch between training set and test set.

• Implemented FeatureBlock component as a wrapper of two sub-component, FeatureImportance and FeatureDistribution
• Made query of feature distribution for both train and test set
• Created a wrapper feature-block to include both feature importance and feature distribution
• Change metric-overtime with react-vis
• Changed the layout of model-chart
• Fixed logout button
• Changed back-to-search button css

[codecov-io]

Codecov Report

Merging #63 into master will increase coverage by 0.37%. The diff coverage is 75.75%.

@@            Coverage Diff             @@
##           master      #63      +/-   ##
==========================================
+ Coverage   71.28%   71.66%   +0.37%     
==========================================
  Files           4        4              
  Lines         303      360      +57     
==========================================
+ Hits          216      258      +42     
- Misses         87      102      +15

Impacted Files	Coverage Δ
webapp/query.py	86.04% <72.22%> (-10.45%)	:arrow_down:
webapp/controller.py	63.67% <80%> (+2.65%)	:arrow_up:

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