Frequencies for first 10,000 rows of genmedxm variable in namcs2003 dataset : general | medical | exam | Freq. Percent Cum. ------------+----------------------------------- 0 | 5,657 56.57 56.57 1 | 4,343 43.43 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016