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Collapsing PCA and RandomizedPCA #5243
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+1 |
I think it is a good idea - +1 On Thu, Sep 10, 2015 at 9:53 AM, Andreas Mueller notifications@github.com
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+1 – though of course we'd want to leave |
+1 |
Any idea on how to handle the options ValueError or something more clever? |
ValueError or something more clever?
Being clever in the 'auto' choice, and raising a ValueError for the
solver='randomized'.
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Following discussions in #5141 we may want to collapse RandomizedPCA as an alternative solver into PCA with a
svd_solver='auto'
that would userandomized_svd
whenevern_components + n_oversamples < 0.8 * min(n_samples, n_features)
.This reflects the implementation of fbpca. People may not know that RandomizedPCA exists or when it makes sense to use it.
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