 Usage:  adddata(di, l_num, c_num, data1, data2, ...)   
 
 Input:

  di                     Display 
                         
                         
  l_num                  integer, 1 ... count of lines of di 
                         
                         
  c_num                  integer, 1 ... count of columns of di 
                         
                         
  data1                  data matrix with at least 2 columns 
                         
                         
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(C) MD*TECH Method and Data Technologies, 17.8.2000
