[Mne_analysis] tf_mixed_norm applied to epochs?

[Per Arnold Lysne]

Would it be possible to separate the TF-MxNE inverse operator from the data to which it is applied? This would be similar to the L-1 MNE inverse, where "make_inverse_operator" is separate from "apply_inverse"? In which case the localization could be performed on average evoked data, and then the solution could be applied to epochs?

Thanks again,

-Per

P.S. tf_mixed_norm appears to discard the sign of the timecourses? I.e. they are always non-negative? Can the sign be retained?

________________________________________
From: mne_analysis-bounces at nmr.mgh.harvard.edu <mne_analysis-bounces at nmr.mgh.harvard.edu> on behalf of Alexandre Gramfort <alexandre.gramfort at telecom-paristech.fr>
Sent: Saturday, May 24, 2014 6:21 AM
To: Discussion and support forum for the users of MNE Software
Cc: Daniel Strohmeier
Subject: Re: [Mne_analysis] tf_mixed_norm applied to epochs?

hi Per,

>     Is there a way to produce individual epoch-level output from the recent
> tf_mixed_norm localization? I need epochs to pass to spectral estimation and
> further processing. Thanks,

we've been working on this feature with Daniel Strohmeier for some time
now but it's not ready yet.

If you apply a non-linear inverse method on just one epoch it does not work
so you need to do something smarter to combine all epochs.

Alex
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