Frequencies for first 10,000 rows of rx4v3c2 variable in nhamcsopd2011 dataset :

   For RX4, |
 level 3 of |
MULTUM drug |
category #2 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,764       97.64       97.64
        102 |          3        0.03       97.67
        174 |          3        0.03       97.70
        180 |          2        0.02       97.72
        185 |          4        0.04       97.76
        196 |          1        0.01       97.77
        198 |         13        0.13       97.90
        201 |          3        0.03       97.93
        203 |         28        0.28       98.21
        209 |          1        0.01       98.22
        210 |          8        0.08       98.30
        211 |         92        0.92       99.22
        238 |          3        0.03       99.25
        239 |          1        0.01       99.26
        268 |          2        0.02       99.28
        276 |          2        0.02       99.30
        279 |          1        0.01       99.31
        292 |          7        0.07       99.38
        301 |          9        0.09       99.47
        330 |          1        0.01       99.48
        351 |          1        0.01       99.49
        385 |         16        0.16       99.65
        386 |          5        0.05       99.70
        387 |          2        0.02       99.72
        388 |         20        0.20       99.92
        389 |          4        0.04       99.96
        442 |          2        0.02       99.98
        445 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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