Frequencies for first 10,000 rows of rx6v2c3 variable in nhamcsopd2010 dataset :

   for rx6, |
 level 2 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,976       99.76       99.76
        064 |         11        0.11       99.87
        065 |          5        0.05       99.92
        101 |          2        0.02       99.94
        104 |          1        0.01       99.95
        265 |          1        0.01       99.96
        270 |          1        0.01       99.97
        332 |          1        0.01       99.98
        433 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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