I mean, that's the point. What kind of real world complexities are actually line... | Hacker News

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		ThereIsNoWorry on April 1, 2022 \| parent \| context \| favorite \| on: Reasons to not use PCA for feature selection I mean, that's the point. What kind of real world complexities are actually linearly explainable? Almost none. It goes all the way back to why classical statistics failed to provide real world value after a certain point and the trend has been going towards using non-linear black boxes for the last decade.

platz on April 1, 2022 [–]

So you basically are saying PCA is a useless procedure.

Also, "after a certain point" is doing a lot of heavy lifting in that sentance.

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