p-gw / FactorRotations.jl

Rotation methods for factor analysis and principal component analysis in Julia
https://p-gw.github.io/FactorRotations.jl/
MIT License
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Test rotation against external results #61

Open p-gw opened 6 months ago

p-gw commented 6 months ago
I think it is, it could also be done more consistently for all the methods that the packages have in common.

One general consideration here is if we are comparing the rotation results against some reference, which has limited precision (e.g. the results from 2005 paper) -- that limited precision implies that the corresponding rotation may slightly violate the orthogonality constraints, and the corresponding reference criterion might be accidentally more optimal because the "point" is outside of the domain.
So ideally all reference rotations should contain as many digits after 0 as possible.

_Originally posted by @alyst in https://github.com/p-gw/FactorRotations.jl/pull/58#discussion_r1578177709_