Frequencies for first 10,000 rows of obesity variable in nhamcsopd2005 dataset : does | patient now | have - | obesity | Freq. Percent Cum. ------------+----------------------------------- no | 9,202 92.02 92.02 yes | 798 7.98 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016