Frequencies for first 10,000 rows of rx3v3c2 variable in nhamcsopd2007 dataset :

   for rx3, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,795       97.95       97.95
        102 |          3        0.03       97.98
        143 |          2        0.02       98.00
        185 |          3        0.03       98.03
        196 |         11        0.11       98.14
        198 |         24        0.24       98.38
        201 |          3        0.03       98.41
        203 |         26        0.26       98.67
        209 |          1        0.01       98.68
        210 |          1        0.01       98.69
        211 |         96        0.96       99.65
        238 |          8        0.08       99.73
        239 |          6        0.06       99.79
        266 |          1        0.01       99.80
        268 |          2        0.02       99.82
        292 |          6        0.06       99.88
        301 |          8        0.08       99.96
        317 |          1        0.01       99.97
        351 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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