Frequencies for first 10,000 rows of rx1cat3 variable in nhamcsopd2008 dataset :

   for rx1, |
multum drug |
category #3 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,876       98.76       98.76
        185 |         48        0.48       99.24
        197 |         30        0.30       99.54
        203 |         31        0.31       99.85
        204 |          1        0.01       99.86
        270 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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