Frequencies for first 10,000 rows of rx6v1c3 variable in nhamcsopd2010 dataset :

   for rx6, |
 level 1 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,976       99.76       99.76
        040 |          2        0.02       99.78
        057 |         16        0.16       99.94
        097 |          2        0.02       99.96
        105 |          1        0.01       99.97
        113 |          1        0.01       99.98
        254 |          1        0.01       99.99
        331 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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