Frequencies for first 10,000 rows of othdiag variable in nhamcsed1992 dataset : Other | diagnostic/ | screening | service | Freq. Percent Cum. ------------+----------------------------------- 0 | 8,020 80.20 80.20 1 | 1,980 19.80 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016