Frequencies for di_hcc88 variable in hcccoefn dataset :

     angina |
   pectoris |      Freq.     Percent        Cum.
------------+-----------------------------------
       .044 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

by Jean Roth , jroth@nber.org , 2 May 2016