Frequencies for first 10,000 rows of rx1cat3 variable in namcs2008 dataset :

   for rx1, |
multum drug |
category #3 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,907       99.07       99.07
        185 |         21        0.21       99.28
        197 |         38        0.38       99.66
        203 |         30        0.30       99.96
        204 |          1        0.01       99.97
        270 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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