Frequencies for first 10,000 rows of rfid variable in nhamcsed2008 dataset : does your | ed use | radio | frequency | identificat | ion (rfid) | tracking? | Freq. Percent Cum. ------------+----------------------------------- no | 8,198 81.98 81.98 yes | 1,802 18.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016