Frequencies for first 10,000 rows of rx7v3c2 variable in nhamcsopd2007 dataset :

   for rx7, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,927       99.27       99.27
        102 |          1        0.01       99.28
        174 |          1        0.01       99.29
        186 |          1        0.01       99.30
        198 |         10        0.10       99.40
        203 |         10        0.10       99.50
        210 |          1        0.01       99.51
        211 |         41        0.41       99.92
        238 |          2        0.02       99.94
        239 |          1        0.01       99.95
        268 |          2        0.02       99.97
        292 |          1        0.01       99.98
        317 |          1        0.01       99.99
        351 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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