Frequencies for first 10,000 rows of rx7v1c1 variable in nhamcsed2007 dataset :

   for rx7, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,728       97.28       97.28
        001 |         27        0.27       97.55
        020 |          1        0.01       97.56
        040 |         36        0.36       97.92
        057 |         80        0.80       98.72
        081 |         11        0.11       98.83
        087 |         22        0.22       99.05
        097 |         15        0.15       99.20
        105 |          5        0.05       99.25
        115 |         20        0.20       99.45
        122 |         21        0.21       99.66
        133 |          7        0.07       99.73
        242 |         12        0.12       99.85
        254 |          3        0.03       99.88
        358 |         11        0.11       99.99
        365 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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