[Mne_analysis] Problem reading competition data

[Alexandre Gramfort]

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hi,

> 1) How do I compute covariance? There is a method for raw and epochs
> but this data is evoked type.

you could make a RawArray from a bit of the data in the Evoked instance.
or you can use this:

http://martinos.org/mne/stable/generated/mne.make_ad_hoc_cov.html#mne.make_ad_hoc_cov

> 2) Is it possible to regularise by reducing dimensionality and not use
> noise covariance? This is related to the discussion we had with Alex
> and others off this list, regarding the best settings for MaxFiltered
> data.

where do you want to reduce dimensionality?

Alex