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Clarify principal_axes() documentation regarding axis orientation#5311

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AkshitBoora wants to merge 3 commits intoMDAnalysis:developfrom
AkshitBoora:fix-principal-axes-docs
Open

Clarify principal_axes() documentation regarding axis orientation#5311
AkshitBoora wants to merge 3 commits intoMDAnalysis:developfrom
AkshitBoora:fix-principal-axes-docs

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@AkshitBoora
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@AkshitBoora AkshitBoora commented Mar 15, 2026

Fixes #1828

Adds clarification to the documentation of principal_axes() to explain
that the returned array contains principal axes as row vectors. This
helps avoid confusion where the coordinates may appear transposed
compared to column-vector conventions.


📚 Documentation preview 📚: https://mdanalysis--5311.org.readthedocs.build/en/5311/

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codecov bot commented Mar 15, 2026

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.83%. Comparing base (50dc512) to head (9658f9d).

Additional details and impacted files
@@           Coverage Diff            @@
##           develop    #5311   +/-   ##
========================================
  Coverage    93.82%   93.83%           
========================================
  Files          182      182           
  Lines        22487    22487           
  Branches      3196     3196           
========================================
+ Hits         21099    21101    +2     
+ Misses         925      924    -1     
+ Partials       463      462    -1     

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@jeremyleung521 jeremyleung521 added the more information needed Please reply to requests for information or the issue will be closed. label Mar 16, 2026
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Principle Axes documentation is confusing (in tutorial) and missing (in the docs)

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