Frequencies for first 10,000 rows of othproc variable in nhamcsopd2005 dataset : other | procedure | Freq. Percent Cum. ------------+----------------------------------- no | 9,060 90.60 90.60 yes | 940 9.40 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016