denoise

  DENOISE yields the regression coefficients for 
  correcting EOG artifacts in EEG recordings.
  
  The correction of a single record is obtained like this:      
   [S] = DENOISE(S)
   [S] = DENOISE(FileName)
  removes bias, and 50/60Hz.      
 
   [S] = DENOISE(..., SigChanIdx)
  removes bias, and 50/60Hz on the Signal channels (indicated by vector
  SigChanIdx) only. 

   [S] = DENOISE(..., ListSigChan, ListNoiseChan)
  uses the Noise channels for correction, too. 
 
  Input parameters:
    filename   signal data file. 
    S          signal data, each column represents a channel
    SigChanIdx list of signal channels; 0 [default] indicates all channels
    NoiseChanIdx  list of noise channels use for correction 
  Output parameters
    S          corrected signal data
       
 see also:

 Reference(s):
  R.T.Behrens, L.L. Scharf, Signal Processing Applications of Oblique
  Projection Operators. IEEE Trans Signal Processing, 42(6), 1994,
  1413-1424.