Frequencies for first 10,000 rows of genmedxm variable in namcs2001 dataset : general | medical | exam | Freq. Percent Cum. ------------+----------------------------------- 0 | 6,292 62.92 62.92 1 | 3,708 37.08 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016