Frequencies for first 10,000 rows of escripe variable in nhamcsed2007 dataset :

   if yes, are |
 prescriptions |
          sent |
electronically |
             ? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |        172        1.72        1.72
       unknown |        104        1.04        2.76
not applicable |      4,807       48.07       50.83
           yes |      1,584       15.84       66.67
            no |      3,333       33.33      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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