Frequencies for first 10,000 rows of cam variable in nhamcsopd2008 dataset : complementa | ry | alternative | medicine | Freq. Percent Cum. ------------+----------------------------------- no | 9,945 99.45 99.45 yes | 55 0.55 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016