Adding comparison to mp-value

[koalive]

Hi there! @gwaygenomics as we discussed I am looking on adding the multidimensional perturbation value (mp-value, DOI: 10.1177/1087057112469257) as another metric to which you could compare the grit score. This actually sounds like solving #23 (the mp-value is basically the Mahalanobis distance to the negative controls on the PCA-reduced space).
To clarify and make sure this would fit in this project, could you please confirm that these are the steps it would require?

• In cytominer_eval.operations define a new operation mp_value.
• In test-evaluate.py, add a method test_evaluate_mp_value.
• In evaluate.py, add a case for operation == "mp_value".

Cheers!

[gwaybio]

That's exactly right @koalive - awesome. Excited to see your contributions!

A couple of additional notes:

• When writing cytominer_eval.operations.mp_value.py please follow the current API to the extent possible. This means:
  • repurposing the assign_replicates() function
  • Adding an mp_value option to the assert_melt() function.

Cheers!

[gwaybio]

implemented in #26