I know I can create derived channels in the compile version using
mne_make_derivations. I am just wondering if there's a way to make derived
channels in MNE python. I searched the mailinglist and didn't find anything.
The post in your link seems to be talking about re-referencing, which is
also a nice feature to include. But what I was thinking about was to take
the difference between a pair of channels (to get the saccade signal, for
example) and do some further processing (ie., saccade detection) with the
derived signal. I guess I can always do that using a separate numpy array,
but it seems more elegant to be able to save the derived signal in the raw
object as a derived channel.
2014-12-13 0:22 GMT+01:00 Le Wang <lwang at bu.edu>:
Thanks for the reply, Alex!
The post in your link seems to be talking about re-referencing, which is
also a nice feature to include.
Maybe some terminological problem
But what I was thinking about was to take the difference between a pair of
channels (to get the saccade signal, for example) and do some further
processing (ie., saccade detection) with the derived signal. I guess I can
always do that using a separate numpy array, but it seems more elegant to
be able to save the derived signal in the raw object as a derived channel.
I think this exact use case gave rise to PR #1670
If I'm not mistaken this should allow you to do exactly what you described.
> Hi, MNEers,
>
> I know I can create derived channels in the compile version using
> mne_make_derivations. I am just wondering if there's a way to make
derived
> channels in MNE python. I searched the mailinglist and didn't find
anything.
>
> Thanks!
>
> Best
> Le
>
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