> stem(x, par1, par2, par3)
  The decimal point is 1 digit(s) to the left of the |
  -10 | 00000000
   -9 | 
   -8 | 
   -7 | 
   -6 | 
   -5 | 
   -4 | 
   -3 | 
   -2 | 
   -1 | 
   -0 | 
    0 | 00000000000000000000000000000000000000000000000000000000000000000000
    1 | 
    2 | 
    3 | 
    4 | 
    5 | 
    6 | 
    7 | 
    8 | 
    9 | 
   10 | 00000000000000000000000000