Frequencies for first 10,000 rows of rx1v3c2 variable in nhamcsopd2009 dataset :

   for rx1, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,535       95.35       95.35
        102 |         40        0.40       95.75
        138 |          1        0.01       95.76
        141 |          1        0.01       95.77
        174 |          3        0.03       95.80
        180 |          3        0.03       95.83
        185 |         17        0.17       96.00
        186 |          9        0.09       96.09
        196 |         16        0.16       96.25
        198 |         29        0.29       96.54
        201 |          3        0.03       96.57
        203 |         44        0.44       97.01
        209 |          2        0.02       97.03
        210 |          4        0.04       97.07
        211 |        101        1.01       98.08
        235 |          1        0.01       98.09
        238 |          6        0.06       98.15
        239 |         26        0.26       98.41
        268 |         14        0.14       98.55
        276 |          2        0.02       98.57
        279 |         13        0.13       98.70
        292 |         10        0.10       98.80
        297 |          1        0.01       98.81
        301 |         14        0.14       98.95
        317 |          2        0.02       98.97
        351 |          3        0.03       99.00
        385 |         59        0.59       99.59
        386 |         11        0.11       99.70
        387 |          1        0.01       99.71
        388 |         15        0.15       99.86
        389 |          8        0.08       99.94
        395 |          3        0.03       99.97
        407 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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