Frequencies for first 10,000 rows of comstat1 variable in nhamcsopd1999 dataset :

composition |
status code |
        for |
 medication |
         #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,822       48.22       48.22
          2 |      1,148       11.48       59.70
          3 |        282        2.82       62.52
          . |      3,748       37.48      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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