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  • Description
  • Computes the Student test on EP files (.p). It allows to compare 2 conditions with paired subjects. It takes the difference between the 2 conditions as input.

  • Usage
  • epstudent

This program uses an interactive input.The questions are as follows (questions (program) are italic, answers (user) are bold):
Output EP file prefix (without extension) or Return to quit :
mystudenttestfile
Operation to apply to data : nothing (Return), normalize (n) or weight by event numbers (p or w) :

Enter Return to do nothing, n to normalize each difference file by maximum value of the file, or w to weight difference file by event number.
EP file name (without extension) of difference or Return to quit :
epfile1
EP file name (without extension) of difference or Return to quit :
epfile2
...
EP file name (without extension) of difference or Return to quit :

Output files :

Name Comments#
mystudenttestfile.t.p EP file of the t values of the Student test.
mystudenttestfile.p.p EP file of the probability value (p) of the Student test.


  • Fields of parameter file and example

  • Examples

  • Comments
    1. All EP files should be compatible (in terms of number of channels and samples, number of pre-stimulus samples, sampling frequency) to the first EP file (file 1 in condition 1).
    2. The computed test is bilateral.


  • Current version
  • 1.01 19-01-2012

  • History
    • 1.00 16-09-2011 (PEA) : 1st version.
    • 1.01 19-01-2012 (PEA) : fixes an error on test value.


  • Files
  • $ELANPATH/bin/epstudent

  • See also
  • epwilcox, epunpairedstudent