Frequencies for first 10,000 rows of comstat1 variable in nhamcsopd1994 dataset :

composition |
status code |
        for |
 medication |
         #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,546       45.46       45.46
          2 |      1,093       10.93       56.39
          3 |        455        4.55       60.94
          . |      3,906       39.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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