AFNI program: 3dANOVA

Program:          3dANOVA 
Author:           B. Douglas Ward 
Initial Release:  09 Dec 1996 
Latest Revision:  14 Mar 2003 

This program performs single factor ANOVA on 3D data sets 

Usage: 
3dANOVA 
-levels r                      r = number of factor levels            
-dset 1 filename               data set for factor level 1            
 . . .                           . . .                                
-dset 1 filename               data set for factor level 1            
 . . .                           . . .                                
-dset r filename               data set for factor level r            
 . . .                           . . .                                
-dset r filename               data set for factor level r            
                                                                      
[-voxel num]                   screen output for voxel # num          
[-diskspace]                   print out disk space required for      
                                  program execution                   
                                                                      
                                                                      
The following commands generate individual AFNI 2 sub-brick datasets: 
  (In each case, output is written to the file with the specified     
   prefix file name.)                                                 
                                                                      
[-ftr prefix]                  F-statistic for treatment effect       
[-mean i prefix]               estimate of factor level i mean        
[-diff i j prefix]             difference between factor levels       
[-contr c1...cr prefix]        contrast in factor levels              
                                                                      
                                                                      
The following command generates one AFNI 'bucket' type dataset:       
                                                                      
[-bucket prefix]         create one AFNI 'bucket' dataset whose       
                           sub-bricks are obtained by concatenating   
                           the above output files; the output 'bucket'
                           is written to file with prefix file name   


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'.