Frequencies for first 10,000 rows of racer variable in nhamcsopd1993 dataset :

    patient |
       race |
    recode: |
     white, |
     black, |
      other |      Freq.     Percent        Cum.
------------+-----------------------------------
      White |      6,324       63.24       63.24
      Black |      3,341       33.41       96.65
      Other |        335        3.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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