Frequencies for first 10,000 rows of prdiag1 variable in nhamcsopd2002 dataset :

   is diag1 |
  probable, |
questionabl |
      e, or |
   ruleout? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,733       97.33       97.33
          1 |        127        1.27       98.60
          8 |        140        1.40      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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