Frequencies for first 10,000 rows of rx4v2c4 variable in nhamcsed2011 dataset : For RX4, | level 2 of | MULTUM drug | category #4 | (intermedia | te level) | Freq. Percent Cum. ------------+----------------------------------- | 9,964 99.64 99.64 066 | 36 0.36 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016