Frequencies for first 10,000 rows of rx1cat3 variable in nhamcsopd2007 dataset :

   for rx1, |
multum drug |
category #3 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,907       99.07       99.07
        119 |          1        0.01       99.08
        185 |         41        0.41       99.49
        197 |         25        0.25       99.74
        203 |         21        0.21       99.95
        270 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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