Frequencies for first 10,000 rows of comstat1 variable in nhamcsopd1995 dataset :

composition |
status code |
        for |
 medication |
         #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,643       46.43       46.43
          2 |        987        9.87       56.30
          3 |        324        3.24       59.54
          . |      4,046       40.46      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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