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  • Description
  • Computes baseline correction of an evoked potential file from the same or a different evoked potential file. The output is a new evoked potential file (.p).

  • Usage
  • epbline

This program uses an interactive input.The questions are as follows (questions (program) are italic, answers (user) are bold):
Name of the EP file to correct (no .p extension) or return to quit :
myfile1
Name of the EP file on which the baseline is computed (no .p extension) :
myfile2
Name of the corrected EP file (no .p extension) :
myoutfile
Start latency of baseline (in ms) :
-500
"Stop latency of baseline (in ms) :
-50
Name of the EP file to correct (no .p extension) or return to quit :



  • Fields of parameter file and example

  • Examples
  • This program will compute the baseline on myfile2, will correct myfile1 and will store the results in myoutfile. The number of channel, the number of samples, the analysis duration, the number of pre-stimulus samples and the sampling period must be the same in all input files.

  • Comments
    1. It should be noted that the evoked potential file name are entered without the .p extension.
    2. Possible error messages:
    3. Incompatible epfile : p_xe[n]
      the file you just enter is not compatible with the previous ones. The 'n' indicates which field of the *.p header is wrong:
      - 1 the number of channel,
      - 2 the number of samples,
      - 3 the epoch duration,
      - 4 the number of pre-stimulus samples,
      - 5 the sampling period.


  • Current version
  • 1.03 25-01-2011

  • History
    • 1.00 26-03-2002 (PEA) : 1st documented version.
    • 1.01 19-12-2006 (PEA) : minor modification.
    • 1.02 30-09-2010 (PEA) : updates to use cmake and free release of Elan.
    • 1.03 25-01-2011 (PEA) : removes static allocation for reading EP file.


  • Files
  • $ELANPATH/bin/epbline

  • See also