Frequencies for first 10,000 rows of rx8v1c1 variable in nhamcsopd2007 dataset :

   for rx8, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,156       91.56       91.56
        001 |         34        0.34       91.90
        020 |          6        0.06       91.96
        028 |          1        0.01       91.97
        040 |        136        1.36       93.33
        057 |        164        1.64       94.97
        081 |         20        0.20       95.17
        087 |         83        0.83       96.00
        097 |         22        0.22       96.22
        105 |         24        0.24       96.46
        115 |         74        0.74       97.20
        122 |         57        0.57       97.77
        133 |         36        0.36       98.13
        218 |         18        0.18       98.31
        242 |         40        0.40       98.71
        254 |         13        0.13       98.84
        331 |          1        0.01       98.85
        358 |        111        1.11       99.96
        365 |          3        0.03       99.99
        899 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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