Frequencies for first 10,000 rows of prdiag4 variable in nhamcsed2015 dataset :

 For diagnosis |
    4, is this |
     probable, |
 questionable, |
   or ruleout? |      Freq.     Percent        Cum.
---------------+-----------------------------------
Not applicable |      8,715       87.15       87.15
            No |      1,271       12.71       99.86
           Yes |         14        0.14      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017