Add extra checks for delta_n

[Naeemkh]

No description provided.

[codecov]

Codecov Report

Patch coverage: 64.28% and project coverage change: -0.30% ⚠️

Comparison is base (7b125cb) 87.96% compared to head (10b3db4) 87.66%.

❗ Current head 10b3db4 differs from pull request most recent head d7864fb. Consider uploading reports for the commit d7864fb to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #234      +/-   ##
===========================================
- Coverage    87.96%   87.66%   -0.30%     
===========================================
  Files           31       31              
  Lines         1138     1151      +13     
===========================================
+ Hits          1001     1009       +8     
- Misses         137      142       +5     

Files Changed	Coverage Δ
R/generate_pseudo_pop.R	92.76% <61.53%> (-1.83%)	⬇️
R/create_matching.R	97.26% <100.00%> (ø)

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