Frequencies for first 10,000 rows of escripo variable in nhamcsopd2010 dataset : if yes, are | prescriptions | sent | electronically | to the | pharmacy? | Freq. Percent Cum. ---------------+----------------------------------- blank | 10,000 100.00 100.00 ---------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016