 Usage:  r = cdfx(dist, x, shape)  
 
 Input:

  dist                   name of distribution: "ev", "ev0", "ev1", "ev2", "gp", "gp0", "gp1" or "gp2" 
                         
  x                      vector 
                         
  shape                  shape parameter 
                         
 Output:

  r                      vector 
                         
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(C) MD*TECH Method and Data Technologies, 17.8.2000
