Extra filter after pearson residuals normalization

[Sichao25]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 19.23077% with 21 lines in your changes are missing coverage. Please review.

Project coverage is 23.03%. Comparing base (34004cc) to head (3c51be5).
Report is 54 commits behind head on master.

Files	Patch %	Lines
dynamo/preprocessing/QC.py	7.14%	13 Missing ⚠️
dynamo/preprocessing/Preprocessor.py	33.33%	8 Missing ⚠️

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #665      +/-   ##
==========================================
+ Coverage   22.94%   23.03%   +0.09%     
==========================================
  Files         160      161       +1     
  Lines       27645    27786     +141     
==========================================
+ Hits         6342     6400      +58     
- Misses      21303    21386      +83     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.