Matrix mapping sensor to source

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Hi!

Is it possible to retrieve the matrix performing the mapping of sensor to
source space for MEG data? That is not a function but an object that can
be treated as a matrix?

Best,
Karin
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hi,

look at matrix K as used here:

https://github.com/mne-tools/mne-python/blob/master/mne/minimum_norm/inverse.py#L930

HTH
Alex

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Thanks!
I have continuous meg data from epilepsy patients and I would like to filter my data so that my output will be one continuous time series representing (as good as possible) the activity stemming only from the epileptic focus. Would it be possible to achieve this creating a spatial filter by multiplying K with a vector of dimension (306x1) with time point with maximum spike amplitude and then multiplying this ?filter? with the raw data (resulting in one row vector reflecting activity in the source of spiking activity)?

Karin