Back to the main page.
Bug 1438 - reading 4D data fails for empty room data
| Status | CLOSED FIXED |
| Reported | 2012-04-18 23:12:00 +0200 |
| Modified | 2012-07-04 16:58:43 +0200 |
| Product: | FieldTrip |
| Component: | fileio |
| Version: | unspecified |
| Hardware: | PC |
| Operating System: | Mac OS |
| Importance: | P3 normal |
| Assigned to: | Jan-Mathijs Schoffelen |
| URL: | |
| Tags: | |
| Depends on: | |
| Blocks: | |
| See also: |
Robert Oostenveld - 2012-04-18 23:12:19 +0200
Probably the head localization in the data is misinterpreted, because it is an empty room measurement. /Volumes/Data/roboos/data/HCP/database/S00P1/electrophys/Rnoise_MNN_V1/c,rfDC applying digital weights in the gradiometer balancing matrix undoing the Supine balancing ??? NaN's cannot be converted to logicals. Error in ==> channelposition at 74 dist(~dist) = inf; Error in ==> ft_datatype_sens at 99 [chanpos, chanori, chanlab] = channelposition(sens, 'channel', 'all'); Error in ==> ft_read_header at 1671 hdr.grad = ft_datatype_sens(hdr.grad);
Jan-Mathijs Schoffelen - 2012-05-16 07:24:01 +0200
a principled solution here would probably be to re-implement bti2grad, or whicheven function is used to go from header info to grad structure.
Jan-Mathijs Schoffelen - 2012-05-21 10:11:23 +0200
cd /data/jansch/HCP/database/Phase1MEG/CP10019/CP10019_MEG/scans/1-Rnoise_MNN_V1/resources/4D/files hdr=ft_read_header('c,rfDC'); sens = ft_datatype_sens(hdr.grad); % no problems for me
Jan-Mathijs Schoffelen - 2012-06-07 21:04:27 +0200
Abbas reported the same problem.
Jan-Mathijs Schoffelen - 2012-06-07 21:05:54 +0200
PS: working on the Melon dataset