Frequencies for first 10,000 rows of eprolsto variable in nhamcsopd2009 dataset :

  if yes, does |
  this include |
       patient |
problem lists? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |        652        6.52        6.52
       unknown |        303        3.03        9.55
not applicable |      1,076       10.76       20.31
           yes |      4,621       46.21       66.52
            no |      3,348       33.48      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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