回复： [FIELDTRIP] Ask for help :How can I read the weights file of SAM spatial filter?

[李卫娜]

I found a way to read the weigts in http://kurage.nimh.nih.gov/meglab/Meg/Readwts

may help someone else
 
 


--- 09年4月12日，周日, 李卫娜 <lwn_07 at YAHOO.COM.CN> 写道：


发件人: 李卫娜 <lwn_07 at YAHOO.COM.CN>
主题: [FIELDTRIP] Ask for help :How can I read the weights file of SAM spatial filter?
收件人: FIELDTRIP at NIC.SURFNET.NL
日期: 2009年4月12日,周日,下午12:03







Dear fieldtripers,
 
    I want to read the SAM spatial filters of my MEG data recorded by CTF151 MEG system in a motor task. It seems the file in a ".svl.max.wts" format describe the "weights" information, but I can't read the out. And I found that there was a "read_ctf_coef.m" file in "eeglab plugins" which is copyrighted to Robert, can returns the spatial filter cofficients for CTF MEG system, and these cofficients were not read from a file but already existed. Is this "cofficients" and my weights the same thing?
 
    The description of function "read_ctf_coef" is as follows:
 
function [coef] = read_ctf_coef
% READ_CTF_COEF returns the spatial filter coefficients for the CTF MEG system
% that has been installed at the F.C. Donders Centre (id 1706)
%
% This function actually does not read the coefficients from a file, but the 
% coefficients themselves are included in this function.
%
% The original location of the coefficients included in this file is
% odin:/opt/ctf/hardware/M016/M017_1706.coef

% Copyright (C) 2003, Robert Oostenveld
 
 
     Best Wishes!
 
                                                                                         Weina LI
                                                                                        2009.04.12


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The aim of this list is to facilitate the discussion between users of the FieldTrip  toolbox, to share experiences and to discuss new ideas for MEG and EEG analysis. See also http://listserv.surfnet.nl/archives/fieldtrip.html and http://www.ru.nl/neuroimaging/fieldtrip.
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