Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision Both sides next revision
faq:fiducial [2018/10/21 14:56]
42.49.180.224 [How should I specify the fiducials for electrode realignment?]
faq:fiducial [2017/08/17 11:21] (current)
127.0.0.1 external edit
Line 7: Line 7:
 In **[[:​reference:​ft_electroderealign]]** the fiducials are never obtained from the elec structure, but they always have to be explicitly specified in the cfg: In **[[:​reference:​ft_electroderealign]]** the fiducials are never obtained from the elec structure, but they always have to be explicitly specified in the cfg:
  
-&lt;code&gt;+<code>
 fid.chanpos ​      = [nas; lpa; rpa];       % ctf-coordinates of fiducials fid.chanpos ​      = [nas; lpa; rpa];       % ctf-coordinates of fiducials
 fid.elecpos ​      = [nas; lpa; rpa];       % Nx3, where N includes the fiducials fid.elecpos ​      = [nas; lpa; rpa];       % Nx3, where N includes the fiducials
Line 19: Line 19:
 cfg.fiducial ​     = {'​Nz',​ '​LPA',​ '​RPA'​}; ​ % labels of fiducials in fid and in elec cfg.fiducial ​     = {'​Nz',​ '​LPA',​ '​RPA'​}; ​ % labels of fiducials in fid and in elec
 elec_aligned ​     = ft_electroderealign(cfg);​ elec_aligned ​     = ft_electroderealign(cfg);​
-&lt;/code&gt;+</code>
  
 In case fiducials are present in the elec structure, they will simply be removed at the time of forward modelling. Just like channels such as “trigger” and “EOG” are removed from the data prior to forward modelling. ​ In case fiducials are present in the elec structure, they will simply be removed at the time of forward modelling. Just like channels such as “trigger” and “EOG” are removed from the data prior to forward modelling. ​
  
 See also the FAQ about [[how_are_electrodes_magnetometers_or_gradiometers_described|how are electrodes, magnetometers or gradiometers described?​]]. See also the FAQ about [[how_are_electrodes_magnetometers_or_gradiometers_described|how are electrodes, magnetometers or gradiometers described?​]].