Frequencies for first 10,000 rows of prdiag3 variable in nhamcsed2002 dataset :

   is diag3 |
  probable, |
questionabl |
      e, or |
   ruleout? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,119       11.19       11.19
          1 |         77        0.77       11.96
          8 |      8,804       88.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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