Frequencies for first 10,000 rows of rx2v3c2 variable in nhamcsopd2010 dataset :

   for rx2, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,616       96.16       96.16
        102 |          3        0.03       96.19
        174 |          7        0.07       96.26
        180 |          4        0.04       96.30
        185 |          1        0.01       96.31
        186 |          4        0.04       96.35
        196 |         23        0.23       96.58
        198 |         35        0.35       96.93
        201 |          3        0.03       96.96
        203 |         43        0.43       97.39
        209 |          1        0.01       97.40
        210 |          1        0.01       97.41
        211 |        114        1.14       98.55
        236 |          1        0.01       98.56
        238 |          2        0.02       98.58
        239 |         13        0.13       98.71
        268 |          6        0.06       98.77
        269 |          1        0.01       98.78
        276 |          2        0.02       98.80
        279 |          3        0.03       98.83
        292 |          9        0.09       98.92
        301 |         10        0.10       99.02
        317 |          3        0.03       99.05
        330 |          1        0.01       99.06
        385 |         51        0.51       99.57
        386 |         14        0.14       99.71
        387 |          3        0.03       99.74
        388 |         10        0.10       99.84
        389 |          8        0.08       99.92
        407 |          2        0.02       99.94
        442 |          2        0.02       99.96
        444 |          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