Frequencies for first 10,000 rows of rx2cat3 variable in nhamcsopd2010 dataset :

   for rx2, |
multum drug |
category #3 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,915       99.15       99.15
        118 |          1        0.01       99.16
        185 |          3        0.03       99.19
        197 |         40        0.40       99.59
        203 |         27        0.27       99.86
        204 |          1        0.01       99.87
        265 |          1        0.01       99.88
        270 |          6        0.06       99.94
        430 |          2        0.02       99.96
        433 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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