Frequencies for first 10,000 rows of rx7v3c2 variable in nhamcsopd2010 dataset :

   for rx7, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,878       98.78       98.78
        102 |          1        0.01       98.79
        174 |          5        0.05       98.84
        185 |          2        0.02       98.86
        196 |          8        0.08       98.94
        198 |          7        0.07       99.01
        203 |         11        0.11       99.12
        211 |         48        0.48       99.60
        239 |          1        0.01       99.61
        292 |          2        0.02       99.63
        301 |          4        0.04       99.67
        330 |          1        0.01       99.68
        385 |         15        0.15       99.83
        386 |          2        0.02       99.85
        387 |          1        0.01       99.86
        388 |          6        0.06       99.92
        389 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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