Frequencies for first 10,000 rows of eprolsto variable in nhamcsopd2007 dataset :

  if yes, does |
  this include |
       patient |
problem lists? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |         61        0.61        0.61
       unknown |        399        3.99        4.60
not applicable |      1,513       15.13       19.73
           yes |      4,645       46.45       66.18
            no |      3,382       33.82      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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