Frequencies for first 10,000 rows of rx6v3c3 variable in nhamcsopd2010 dataset :

   for rx6, |
 level 3 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,980       99.80       99.80
        185 |          2        0.02       99.82
        197 |          5        0.05       99.87
        203 |         11        0.11       99.98
        374 |          1        0.01       99.99
        445 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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