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Bug 772 - cannot topo- and multiplot neuromag data
| Status | CLOSED FIXED |
| Reported | 2011-06-21 09:06:00 +0200 |
| Modified | 2011-07-13 14:47:02 +0200 |
| Product: | FieldTrip |
| Component: | plotting |
| Version: | unspecified |
| Hardware: | PC |
| Operating System: | Windows |
| Importance: | P1 normal |
| Assigned to: | Arjen Stolk |
| URL: | |
| Tags: | |
| Depends on: | |
| Blocks: | |
| See also: |
Arjen Stolk - 2011-06-21 09:06:08 +0200
This bug derives from a problem mentioned at the discussion list (Kambiz Tavabi). In the user case, ft_multiplotER showed empty axes. In my case (most recent Ft version), an error was thrown saying there was a mismatch between the data and the layout. It turns out that cfg.layout = 'neuromag306mag.lay' or 'neuromag306planar.lay' or 'neuromag306all.lay', seem to work fine (*cmb.lay fails). But NM306*.lay layouts do not work. When looking into the above mentioned layout files, I see what's causing the problem. The NM306*.lay layouts have different labels, i.e. they say just the number of the channels whereas the neuromag306*.lay layouts have full labels with 'MEG' prefixes. In conclusion, the user should try specifying one of the neuromag306*.lay layouts when plotting (and automatic layout selection) neuromag data is problematic.
Robert Oostenveld - 2011-06-21 09:53:07 +0200
depending on how the data is read (i.e. which with low-level toolbox), the channel labels will be either "MEG xxx" or "xxx". That is why there are different layouts.