Frequencies for first 10,000 rows of ecpoe variable in namcs2011 dataset :

          Does practice have |
     computerized system for |
     ordering prescriptions? |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                       Blank |         26        0.26        0.26
                     Unknown |          9        0.09        0.35
                         Yes |      6,554       65.54       65.89
                          No |      3,137       31.37       97.26
Yes, but turned off/not used |        274        2.74      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

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