Frequencies for first 10,000 rows of drg3ing3 variable in nhamcsopd1994 dataset :

 ingredient |
code #3 for |
 medication |
         #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,952       99.52       99.52
      50745 |          3        0.03       99.55
      53175 |          2        0.02       99.57
      53325 |          1        0.01       99.58
      53915 |          2        0.02       99.60
      54325 |          5        0.05       99.65
      54465 |          5        0.05       99.70
      54468 |          1        0.01       99.71
      54595 |          1        0.01       99.72
      54990 |          3        0.03       99.75
      54995 |          2        0.02       99.77
      55105 |          3        0.03       99.80
      55130 |         10        0.10       99.90
      55240 |          5        0.05       99.95
      55715 |          1        0.01       99.96
      55745 |          1        0.01       99.97
      56192 |          1        0.01       99.98
      56193 |          1        0.01       99.99
      57058 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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