Frequencies for first 10,000 rows of rx1v3c2 variable in nhamcsopd2007 dataset :

   for rx1, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,669       96.69       96.69
        102 |         41        0.41       97.10
        140 |          1        0.01       97.11
        141 |          1        0.01       97.12
        143 |          2        0.02       97.14
        174 |          6        0.06       97.20
        180 |          4        0.04       97.24
        185 |          5        0.05       97.29
        186 |          7        0.07       97.36
        196 |         12        0.12       97.48
        197 |          2        0.02       97.50
        198 |         31        0.31       97.81
        201 |          6        0.06       97.87
        203 |         36        0.36       98.23
        210 |          3        0.03       98.26
        211 |         96        0.96       99.22
        238 |          6        0.06       99.28
        239 |         18        0.18       99.46
        248 |          1        0.01       99.47
        268 |         12        0.12       99.59
        276 |          3        0.03       99.62
        292 |         14        0.14       99.76
        301 |         15        0.15       99.91
        317 |          2        0.02       99.93
        351 |          5        0.05       99.98
        374 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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