Frequencies for first 10,000 rows of ewhopracp variable in namcs2012 dataset : When orders for | prescriptions are | submitted | electronically, | submitted by: | prescr | Freq. Percent Cum. ------------------+----------------------------------- Not applicable | 3,501 35.01 35.01 Box is not marked | 1,051 10.51 45.52 Box is marked | 5,448 54.48 100.00 ------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016