ft_denoise_pca

[jan-mathijs schoffelen]

Dear all,

I just added a new function to the svn-repository, making it available
in the daily download as of tonight. This function is called
ft_denoise_pca and deals with the denoising of MEG data based on
concurrent measurements on reference sensors. The algorithm is
inspired by the denoising technique applied in the 4D neuroimaging
software, but can be applied whenever there are reference channel
measurements available. I allows for the computation (and application)
of balancing weights by regressing specified reference channels out of
the MEG data. There have been some recent threads on this discussion
list about this issue.

For those interested in using it: happy computing.

For those already using it: please revert to using the new version
which comes with your regular updates of fieldtrip. This version is
also not dependent anymore on the bunch of cellfunctions, because I
copied them as subfunctions into the main body of the code for the
time being.

Best wishes,

Jan-Mathijs

Dr. J.M. (Jan-Mathijs) Schoffelen
Donders Institute for Brain, Cognition and Behaviour,
Centre for Cognitive Neuroimaging,
Radboud University Nijmegen, The Netherlands
J.Schoffelen at donders.ru.nl
Telephone: 0031-24-3614793

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