Frequencies for first 10,000 rows of cam variable in nhamcsopd2005 dataset : complementa | ry | alternative | medicine | Freq. Percent Cum. ------------+----------------------------------- no | 9,981 99.81 99.81 yes | 19 0.19 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016