Frequencies for first 10,000 rows of rx3v3c3 variable in nhamcsopd2008 dataset :

   for rx3, |
 level 3 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,937       99.37       99.37
        185 |          3        0.03       99.40
        197 |         29        0.29       99.69
        203 |         29        0.29       99.98
        204 |          1        0.01       99.99
        265 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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