CSP for multi classification

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Hi all,
Does Common Spatial Patterns algorithm (from mne.decoding import CSP)
works well for multi classification? Or is it much more better by
binary classificaiton?

Thanks in Advance

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Hi,

The object mne.decoding.CSP works with more than 2 classes, but will be
increasingly slow as the number of class increases.

Since CSP is a spatial filtering technique, the more classes you have, the
less you'll be filtering.

You should thus avoid spatial filtering for multi-class problems,

You can check
https://pyriemann.readthedocs.io/en/latest/generated/pyriemann.classification.TSclassifier.html#pyriemann.classification.TSclassifier

JR