Frequencies for first 10,000 rows of comstat4 variable in nhamcsed2001 dataset :

composition |
status code |
for drug #4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        914        9.14        9.14
          2 |        117        1.17       10.31
          3 |         67        0.67       10.98
          . |      8,902       89.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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