[FieldTrip] beamforming - normilise issue

[Davide Rivolta]

Dear all,

I am trying to use beamforming for some MEG data.

I have 1 condition, and I wish to compare it against the baseline. Ideally I
wish to have the average of all group and statistically compare stimulus
agains baseline..

As such, for each subject I calculate the source for the baseline and the
source for the stimulus (using a common filter as indicated on the website).

I then call ft_sourceinterpolate and, since I wish to have a group analysis,
ft_volumenormalise.
In order to compute the average, I call ft_sourcegrandaverage.

Even though the help tells me that it is fine, the grandaverage does not
work if the input is from the ft_volumenormalise. It is because there is not
the ".pos" field!

Am I doing something wrong?

Any advice would be great.

Thanks a lot,

Davide
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