Frequencies for first 10,000 rows of rx4cat2 variable in nhamcsed2007 dataset :

   for rx4, |
multum drug |
category #2 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,727       97.27       97.27
        012 |          9        0.09       97.36
        015 |         16        0.16       97.52
        053 |         20        0.20       97.72
        054 |          1        0.01       97.73
        095 |          1        0.01       97.74
        100 |          1        0.01       97.75
        106 |          1        0.01       97.76
        109 |         12        0.12       97.88
        117 |          8        0.08       97.96
        123 |         23        0.23       98.19
        124 |          2        0.02       98.21
        127 |          1        0.01       98.22
        129 |         36        0.36       98.58
        146 |          1        0.01       98.59
        174 |          1        0.01       98.60
        180 |          3        0.03       98.63
        185 |          1        0.01       98.64
        196 |         41        0.41       99.05
        198 |         40        0.40       99.45
        201 |          1        0.01       99.46
        203 |         12        0.12       99.58
        209 |          1        0.01       99.59
        210 |          8        0.08       99.67
        211 |         15        0.15       99.82
        239 |          7        0.07       99.89
        268 |          5        0.05       99.94
        301 |          3        0.03       99.97
        320 |          2        0.02       99.99
        340 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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