Frequencies for first 10,000 rows of rx6cat3 variable in nhamcsopd2009 dataset :

   for rx6, |
multum drug |
category #3 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,967       99.67       99.67
        185 |          3        0.03       99.70
        197 |          7        0.07       99.77
        203 |         15        0.15       99.92
        265 |          3        0.03       99.95
        270 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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