Frequencies for first 10,000 rows of diet variable in nhamcsopd1995 dataset : diet | couns/educ | Freq. Percent Cum. ------------+----------------------------------- 0 | 8,734 87.34 87.34 1 | 1,266 12.66 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016