Frequencies for first 10,000 rows of rx4cat2 variable in nhamcsed2009 dataset :

   for rx4, |
multum drug |
category #2 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,666       96.66       96.66
        012 |         15        0.15       96.81
        015 |         24        0.24       97.05
        053 |         19        0.19       97.24
        106 |          2        0.02       97.26
        117 |          7        0.07       97.33
        123 |         36        0.36       97.69
        124 |          1        0.01       97.70
        129 |         47        0.47       98.17
        132 |          1        0.01       98.18
        146 |          1        0.01       98.19
        174 |          1        0.01       98.20
        180 |          9        0.09       98.29
        185 |          3        0.03       98.32
        196 |         41        0.41       98.73
        198 |         38        0.38       99.11
        201 |          1        0.01       99.12
        203 |         13        0.13       99.25
        210 |         11        0.11       99.36
        211 |         15        0.15       99.51
        239 |         11        0.11       99.62
        268 |          3        0.03       99.65
        292 |          3        0.03       99.68
        301 |          3        0.03       99.71
        340 |          1        0.01       99.72
        351 |          1        0.01       99.73
        385 |         24        0.24       99.97
        388 |          2        0.02       99.99
        389 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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