Frequencies for first 10,000 rows of comstat4 variable in nhamcsopd1994 dataset :

composition |
status code |
        for |
 medication |
         #4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        718        7.18        7.18
          2 |         60        0.60        7.78
          3 |         61        0.61        8.39
          . |      9,161       91.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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