 Usage:  l = readmatrix (filename{, separator})  
 
 Input:

  filename               string 
                         
  separator              string (optional) 
                         
 Output:

  l.ctype                type of column vectors in the file (0 = numeric, 10 = text) 
                         
  l.number               number matrix (optional) 
                         
  l.text                 text matrix (optional) 
                         
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(C) MD*TECH Method and Data Technologies, 17.8.2000
