Frequencies for first 10,000 rows of rx6v2c4 variable in nhamcsed2013 dataset : For RX6, | level 2 of | MULTUM drug | category #4 | (intermedia | te level) | Freq. Percent Cum. ------------+----------------------------------- | 9,984 99.84 99.84 066 | 16 0.16 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 7 Nov 2016