Frequencies for first 10,000 rows of rx11v2c4 variable in nhamcsed2013 dataset : For RX11, | level 2 of | MULTUM drug | category #4 | (intermedia | te level) | Freq. Percent Cum. ------------+----------------------------------- | 9,999 99.99 99.99 066 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 7 Nov 2016