AFNI program: 3dWilcoxon

Program: 3dWilcoxon 
Author:  B. Douglas Ward 
Initial Release:  23 July 1997 
Latest Revision:  02 Dec  2002 

This program performs the nonparametric Wilcoxon signed-rank test 
for paired comparisons of two samples. 

Usage: 
3dWilcoxon                                                          
-dset 1 filename               data set for X observations          
 . . .                           . . .                              
-dset 1 filename               data set for X observations          
-dset 2 filename               data set for Y observations          
 . . .                           . . .                              
-dset 2 filename               data set for Y observations          
                                                                    
[-workmem mega]                number of megabytes of RAM to use    
                                 for statistical workspace          
[-voxel num]                   screen output for voxel # num        
-out prefixname                estimated population delta and       
                                 Wilcoxon signed-rank statistics are
                                 written to file prefixname         


N.B.: For this program, the user must specify 1 and only 1 sub-brick  
      with each -dset command. That is, if an input dataset contains  
      more than 1 sub-brick, a sub-brick selector must be used, e.g.: 
      -dset 2 'fred+orig[3]'                                          

INPUT DATASET NAMES
-------------------
This program accepts datasets that are modified on input according to the
following schemes:
  'r1+orig[3..5]'                                    {sub-brick selector}
  'r1+orig<100.200>'                                 {sub-range selector}
  'r1+orig[3..5]<100..200>'                          {both selectors}
  '3dcalc( -a r1+orig -b r2+orig -expr 0.5*(a+b) )'  {calculation}
For the gruesome details, see the output of 'afni -help'.