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Bug 1850 - ft_channelrepair usind 'spline' method fails for CTF MEG data
| Status | CLOSED FIXED |
| Reported | 2012-11-26 11:52:00 +0100 |
| Modified | 2014-01-29 13:28:35 +0100 |
| Product: | FieldTrip |
| Component: | core |
| Version: | unspecified |
| Hardware: | PC |
| Operating System: | Windows |
| Importance: | P3 normal |
| Assigned to: | Eelke Spaak |
| URL: | |
| Tags: | |
| Depends on: | 1721 |
| Blocks: | |
| See also: |
Jörn M. Horschig - 2012-11-26 11:52:34 +0100
See Tom's mail in the FT list: ----------------- cfg=[] cfg.method='template'; cfg.template='CTF275_neighb.mat'; n=ft_prepare_neighbours(cfg); This structure of course contains all 275 MEG channels, including the ones that are missing from my data. So I try to reinterpolate: % get the 'full' list of channel names for i=1:length(n) allchans{i,:}=n(i).label; end % find the names of the channels that were not recorded missingchans=setdiff(allchans,data.label); % repair cfg=[]; cfg.missingchannel=missingchans; cfg.neighbours=n; cfg.method='spline'; data_r=ft_channelrepair(cfg,data); this fails with: ??? Error using ==> minus Matrix dimensions must agree. Error in ==> ft_channelrepair at 279 d = sens.chanpos - repmat(c, numel(sensidx), 1); -------------- The problem seems to be due to some error in defining the set of missing sensors from the sensor definition.
Jörn M. Horschig - 2012-11-26 13:27:49 +0100
good, that one's solved. But now I realized that SSI does not work for missing channels because the sensor is not present in the grad, so the function does not know at what position the sensor is and thus should be interpolated... gonna need some grad templates, see bug 1721
Jörn M. Horschig - 2012-12-12 10:15:14 +0100
closing this one as the initial problem is fixed.
Robert Oostenveld - 2012-12-15 17:23:40 +0100
Hi Jorn, At this moment it fails, see http://fieldtrip.fcdonders.nl/development/dashboard/r7198/test_bug1850 Can you add test_bug1850.mat to home/common and add the full path to the filename so that the test can be reproduced? Tnx
Eelke Spaak - 2012-12-18 14:12:55 +0100
Test script fixed in rev 7229.