Frequencies for first 10,000 rows of othdiag variable in nhamcsopd1997 dataset :

  all other |
diagnostic/ |
  screening |
   services |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,867       88.67       88.67
          1 |      1,133       11.33      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016