Frequencies for first 10,000 rows of ereminde variable in nhamcsed2008 dataset :

  does ed have |
  computerized |
    system for |
 reminders for |
interven/scree |
   ning tests? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |         70        0.70        0.70
       unknown |      1,636       16.36       17.06
           yes |      3,719       37.19       54.25
            no |      4,456       44.56       98.81
    turned off |        119        1.19      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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