Frequencies for first 10,000 rows of cancer variable in nhamcsopd2008 dataset : does | patient now | have: | cancer | Freq. Percent Cum. ------------+----------------------------------- no | 9,324 93.24 93.24 yes | 676 6.76 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016