Frequencies for first 10,000 rows of newmed1 variable in nhamcsopd1992 dataset :

         Is |
 medication |
 #1 new for |
        the |
   patient? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,416       54.16       54.16
          1 |      2,042       20.42       74.58
          2 |      2,542       25.42      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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