Filter quantile metrics to avoid problems at night

[dfulu]

Pull Request

Description

Filter metrics computing the number of values below the predicted quantiles to avoid issues at night. These metrics don't work well where everything should be zero

Checklist:

• [x] My code follows OCF's coding style guidelines
• [x] I have performed a self-review of my own code
• [x] I have made corresponding changes to the documentation
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] I have checked my code and corrected any misspellings

[codecov[bot]]

Codecov Report

Merging #58 (7c5b065) into main (fcbbbe5) will decrease coverage by 0.09%. The diff coverage is 25.00%.

@@            Coverage Diff             @@
##             main      #58      +/-   ##
==========================================
- Coverage   68.23%   68.15%   -0.09%     
==========================================
  Files          22       22              
  Lines        1615     1617       +2     
==========================================
  Hits         1102     1102              
- Misses        513      515       +2     

Impacted Files	Coverage Δ
pvnet/models/base_model.py	39.36% <0.00%> (-0.43%)	:arrow_down:
pvnet/__init__.py	100.00% <100.00%> (ø)

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