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

Link to this comparison view

reference:ft_rejectcomponent [2018/08/23 14:43] (current)
Line 1: Line 1:
 +Note that this reference documentation is identical to the help that is displayed in MATLAB when you type "help ft_rejectcomponent"​.
 +  <a href=/​reference/​ft_rejectcomponent><​font color=green>​FT_REJECTCOMPONENT</​font></​a>​ backprojects an ICA (or similar) decomposition to the
 +  channel level after removing the independent components that contain
 +  the artifacts. This function does not automatically detect the artifact
 +  components, you will have to do that yourself.
 +  Use as
 +     ​[data] = ft_rejectcomponent(cfg,​ comp)
 +  or as
 +     ​[data] = ft_rejectcomponent(cfg,​ comp, data)
 +  where the input comp is the result of <a href=/​reference/​ft_componentanalysis><​font color=green>​FT_COMPONENTANALYSIS</​font></​a>​. The output
 +  data will have the same format as the output of <a href=/​reference/​ft_preprocessing><​font color=green>​FT_PREPROCESSING</​font></​a>​.
 +  An optional input argument data can be provided. In that case
 +  componentanalysis will do a subspace projection of the input data
 +  onto the space which is spanned by the topographies in the unmixing
 +  matrix in comp, after removal of the artifact components. ​ Please use
 +  this option of including data as input, if you wish to use the output
 +  data.grad in further computation,​ for example for leadfield computation.
 +  The configuration structure can contain
 +    cfg.component ​ = list of components to remove, e.g. [1 4 7] or see <a href=/​reference/​ft_channelselection><​font color=green>​FT_CHANNELSELECTION</​font></​a>​
 +    cfg.demean ​    = '​no'​ or '​yes',​ whether to demean the input data (default = '​yes'​)
 +    cfg.updatesens = '​no'​ or '​yes'​ (default = '​yes'​)
 +  To facilitate data-handling and distributed computing you can use
 +    cfg.inputfile ​  ​= ​ ...
 +    cfg.outputfile ​ =  ...
 +  If you specify one of these (or both) the input data will be read from a *.mat
 +  file on disk and/or the output data will be written to a *.mat file. These mat
 +  files should contain only a single variable, corresponding with the
 +  input/​output structure.
 +  See also <a href=/​reference/​ft_componentanalysis><​font color=green>​FT_COMPONENTANALYSIS</​font></​a>,​ <a href=/​reference/​ft_preprocessing><​font color=green>​FT_PREPROCESSING</​font></​a>​