Frequencies for first 10,000 rows of otherprc variable in nhamcsed1997 dataset : other | procedure | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,520 95.20 95.20 1 | 480 4.80 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016