Frequencies for first 10,000 rows of rx3v3c3 variable in nhamcsopd2010 dataset :

   for rx3, |
 level 3 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,952       99.52       99.52
        185 |          4        0.04       99.56
        197 |         26        0.26       99.82
        203 |         18        0.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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