Stem-and-leaf Plot
> stem(x, par1, par2, par3)
  The decimal point is at the |
   1 | 34799
   2 | 04569
   3 | 23445699
   4 | 044579
   5 | 115579
   6 | 02468
   7 | 35568
   8 | 2
   9 | 059
  10 | 1
  11 | 
  12 | 
  13 | 4
  14 | 13
  15 | 
  16 | 3
  17 | 
  18 | 
  19 | 
  20 | 2