Frequencies for first 10,000 rows of rx7cat2 variable in nhamcsed2009 dataset :

   for rx7, |
multum drug |
category #2 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,948       99.48       99.48
        012 |          2        0.02       99.50
        015 |          2        0.02       99.52
        053 |          6        0.06       99.58
        054 |          1        0.01       99.59
        117 |          2        0.02       99.61
        123 |          4        0.04       99.65
        129 |          8        0.08       99.73
        132 |          1        0.01       99.74
        196 |          5        0.05       99.79
        198 |         10        0.10       99.89
        203 |          2        0.02       99.91
        210 |          2        0.02       99.93
        211 |          3        0.03       99.96
        268 |          1        0.01       99.97
        385 |          1        0.01       99.98
        388 |          1        0.01       99.99
        389 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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