[Mne_analysis] averaging in MNE

[Matti Hamalainen]

On Apr 15, 2009, at 12:51 PM, LABYT Etienne INSERM wrote:

> Dear all,
> I have a question about conversion of fif file into mat file;. I  
> would like to convert my raw data (fif file) into matlab file. For  
> this, I tried to use the function mne_convert_mne_data but I have a  
> message "no evoked data here". I have the same message if I try this  
> with averaged data (fif file) directly obtained by on-line averaging.
> I exactly wrote this command line:
>
> mne_convert_mne_data –meas my filename.fif –mat –out my filename.mat

Dear Etienne,

Here are some relevant points:

1. mne_convert_mne_data does not convert raw data files (mne_raw2mat  
does this).

2. Were your data collected with MaxShield on? If so, I think even the  
averages need to be passed through maxfilter before they can be  
processed further (not absolutely sure about this).

3. The MNE Matlab toolbox pretty much makes mne_convert_mne_data and  
mne_raw2mat obsolete. The fif files can be now read directly from  
Matlab without having to waste disk space for the converted data.

- Matti




-------------

Matti Hamalainen, Ph.D.
Athinoula A. Martinos Center for Biomedical Imaging
Massachusetts General Hospital
Building 149, 13th Street, Mailcode 149-2301
Charlestown, MA 02129-2060
USA

e-mail          msh at nmr.mgh.harvard.edu
Tel             +1 617 726 0323
FAX             +1 617 726 7422



-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/attachments/20090415/81084de2/attachment.html