Frequencies for first 10,000 rows of eresulto variable in nhamcsopd2008 dataset :

 does opd have |
      computer |
    system for |
viewing of lab |
      results? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |        309        3.09        3.09
       unknown |        465        4.65        7.74
           yes |      7,607       76.07       83.81
            no |      1,514       15.14       98.95
    turned off |        105        1.05      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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