Add rerank recall metric to unitxt

[jlqibm]

Closes #661 in support of adding perplexity reranking to fm-eval.

[jlqibm]

@yoavkatz please review

[codecov]

Codecov Report

Attention: Patch coverage is 22.50000% with 31 lines in your changes are missing coverage. Please review.

Project coverage is 90.87%. Comparing base (4274d2b) to head (a6c64c7).

Files	Patch %	Lines
src/unitxt/metrics.py	22.50%	31 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #662      +/-   ##
==========================================
- Coverage   91.13%   90.87%   -0.27%     
==========================================
  Files          98       98              
  Lines        9897     9937      +40     
==========================================
+ Hits         9020     9030      +10     
- Misses        877      907      +30     

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[elronbandel]

Fix the requirements according to unitxt no-requirements policy explained in the comments

[elronbandel]

You need to add the pytrec_eval to therequirements/tests.rqr

[jlqibm]

@elronbandel pytrec-eval is added.

[yoavkatz]

The tests failed with this:

The pre-commit failed with this:

(Do you have pre-commit installed with pre-commit install ? )

[jlqibm]

@yoavkatz The pandas package is missing. So there are 2 question here. One, why didn't this fail at the import statement? Two, which requirements file does pandas need to be added to.
Sorry about the test failure.

I have precommit installed now.

[yoavkatz]

@yoavkatz The pandas package is missing. So there are 2 question here. One, why didn't this fail at the import statement? Two, which requirements file does pandas need to be added to. Sorry about the test failure.

There is a missing import to pandas. In general, if metrics needs specific packages like pandas or trec_eval, we import inside the relevant metric code, and not at the top of the metrics.py file, so If people don't need the metric, they will not need the include.

[jlqibm]

@elronbandel I already fixed the requested change but github still thinks it's pending.

[jlqibm]

@yoavkatz can you tell what's holding up this merge? There appears to be an outstanding change request but I already fixed that a while ago.

Done

[yoavkatz]

I reviewed the code, and it looks fine so I approved.

@elronbandel - I think we the main issue is that the coverage is low - although tests were added (but in the prepare file).
The reason is that coverage is not measured on the prepare files.

We should probably give guidance to write the test in test_metrics and not in the prepare file (unless using a wrapper like HuggingFaceMetric).