Frequencies for first 10,000 rows of comstat2 variable in nhamcsopd1994 dataset :

composition |
status code |
        for |
 medication |
         #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      2,587       25.87       25.87
          2 |        437        4.37       30.24
          3 |        236        2.36       32.60
          . |      6,740       67.40      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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