Frequencies for first 10,000 rows of escripo variable in nhamcsopd2007 dataset : if yes, are | prescriptions | sent | electronically | ? | Freq. Percent Cum. ---------------+----------------------------------- not applicable | 6,080 60.80 60.80 yes | 2,169 21.69 82.49 no | 1,751 17.51 100.00 ---------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016