Frequencies for first 10,000 rows of rx7v3c2 variable in nhamcsopd2008 dataset :

   for rx7, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,914       99.14       99.14
        180 |          2        0.02       99.16
        185 |          1        0.01       99.17
        196 |          1        0.01       99.18
        198 |          4        0.04       99.22
        201 |          1        0.01       99.23
        203 |          8        0.08       99.31
        211 |         45        0.45       99.76
        236 |          1        0.01       99.77
        239 |          1        0.01       99.78
        292 |          1        0.01       99.79
        301 |          2        0.02       99.81
        385 |          6        0.06       99.87
        386 |          2        0.02       99.89
        388 |          5        0.05       99.94
        389 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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