Frequencies for first 10,000 rows of drg3ing3 variable in nhamcsopd1998 dataset :

 ingredient |
code #3 for |
 medication |
         #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,938       99.38       99.38
      50637 |          1        0.01       99.39
      50745 |          4        0.04       99.43
      52885 |          1        0.01       99.44
      52908 |          1        0.01       99.45
      53720 |          1        0.01       99.46
      54325 |          1        0.01       99.47
      54328 |          9        0.09       99.56
      54465 |          6        0.06       99.62
      54595 |          2        0.02       99.64
      54923 |          1        0.01       99.65
      54990 |          1        0.01       99.66
      54995 |          1        0.01       99.67
      55105 |          4        0.04       99.71
      55130 |         15        0.15       99.86
      55240 |          2        0.02       99.88
      55715 |          4        0.04       99.92
      55755 |          3        0.03       99.95
      56445 |          2        0.02       99.97
      59803 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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