Frequencies for first 10,000 rows of rx18v3c4 variable in nhamcsed2015 dataset For RX18, | level 3 of | MULTUM drug | category #4 | (detailed | level) | Freq. Percent Cum. ------------+----------------------------------- | 10,000 100.00 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 20 Nov 2017