Preserve Full Trajectory Information in AnalysisBase

[yuxuanzhuang]

Fixes #4891

Changes made in this Pull Request:
Add self._run_slicer to retrieve global details such as the total number of frames.
Add self._run_frame_index for _single_frame to track the frame index for each frame for the full sliced trajectory that is being analyzed

• create RunConfig to preserve information of run parameters
• create RunState to track information for the whole trajectory slice that is being analyzed.

PR Checklist

• Tests?
• Docs?
• CHANGELOG updated?
• Issue raised/referenced?

Developers certificate of origin

• I certify that this contribution is covered by the LGPLv2.1+ license as defined in our LICENSE and adheres to the Developer Certificate of Origin.

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📚 Documentation preview 📚: https://mdanalysis--4892.org.readthedocs.build/en/4892/

[codecov]

Codecov Report

Attention: Patch coverage is 96.77419% with 1 line in your changes missing coverage. Please review.

Project coverage is 93.41%. Comparing base (dcaa087) to head (883020c).

Files with missing lines	Patch %	Lines
package/MDAnalysis/analysis/base.py	96.77%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #4892      +/-   ##
===========================================
- Coverage    93.42%   93.41%   -0.01%     
===========================================
  Files          177      189      +12     
  Lines        21859    22955    +1096     
  Branches      3078     3079       +1     
===========================================
+ Hits         20422    21444    +1022     
- Misses         986     1060      +74     
  Partials       451      451              

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[pep8speaks]

Hello @yuxuanzhuang! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

There are currently no PEP 8 issues detected in this Pull Request. Cheers! 🍻

Comment last updated at 2025-01-14 18:49:12 UTC

[yuxuanzhuang]

I’m not certain that _global_xxx is the most suitable naming convention for these attributes. I’d appreciate any alternative suggestions you might have.

[yuxuanzhuang]

I will work on the documentation if the current implementation seems more logical to you :)