Frequencies for first 10,000 rows of rx4v3c2 variable in nhamcsopd2009 dataset :

   for rx4, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,749       97.49       97.49
        102 |         10        0.10       97.59
        174 |          6        0.06       97.65
        180 |          2        0.02       97.67
        185 |          1        0.01       97.68
        186 |          1        0.01       97.69
        196 |          9        0.09       97.78
        198 |         25        0.25       98.03
        201 |          1        0.01       98.04
        203 |         23        0.23       98.27
        209 |          2        0.02       98.29
        210 |          5        0.05       98.34
        211 |         82        0.82       99.16
        238 |          8        0.08       99.24
        239 |          4        0.04       99.28
        268 |         15        0.15       99.43
        276 |          3        0.03       99.46
        279 |          1        0.01       99.47
        292 |          2        0.02       99.49
        297 |          1        0.01       99.50
        301 |          8        0.08       99.58
        374 |          1        0.01       99.59
        385 |         13        0.13       99.72
        386 |          7        0.07       99.79
        388 |         14        0.14       99.93
        389 |          5        0.05       99.98
        395 |          1        0.01       99.99
        407 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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