Frequencies for first 10,000 rows of rx3cat3 variable in nhamcsopd2008 dataset :

   for rx3, |
multum drug |
category #3 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,931       99.31       99.31
        185 |          3        0.03       99.34
        197 |         29        0.29       99.63
        203 |         29        0.29       99.92
        204 |          1        0.01       99.93
        265 |          1        0.01       99.94
        270 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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