 Usage:  c = contmax (h)  
 
 Input:

  h                      n x m matrix (for instance, a contingency table 
                         
 Output:

  c                      l x 2 matrix of the category labels of the rows 
                         (first column) which correspond to the category 
                         labels of the columns (second column) 
                         
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(C) MD*TECH Method and Data Technologies, 17.8.2000
