Frequencies for first 10,000 rows of prdiag1 variable in nhamcsopd2000 dataset :

   is diag1 |
  probable, |
questionabl |
       e or |
   ruleout? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,783       97.83       97.83
          1 |         99        0.99       98.82
          2 |        118        1.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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