 Usage:  {ur, x} = chfunc(usel, oldx, n, sel)  

 

 Input:



  usel                   vector commands 

                         

  oldx                   m x 1 array old data 

                         

  n                      scalar number of new datapoints 

                         

  sel                    k x 1 array 

                         

 Output:



  ur                     vector commands 

                         

  x                      m x 1 array new data 

                         

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(C) MD*TECH Method and Data Technologies, 21.9.2000

