Frequencies for first 10,000 rows of rx8v3c2 variable in nhamcsed2012 dataset : For RX8, | level 3 of | MULTUM drug | category #2 | (detailed | level) | Freq. Percent Cum. ------------+----------------------------------- | 9,986 99.86 99.86 180 | 1 0.01 99.87 196 | 3 0.03 99.90 198 | 3 0.03 99.93 210 | 1 0.01 99.94 211 | 3 0.03 99.97 385 | 2 0.02 99.99 389 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 7 Nov 2016