Frequencies for first 10,000 rows of rx8cat3 variable in nhamcsopd2011 dataset : For RX8, | MULTUM drug | category #3 | - most | detailed | level (can | be either | Level 1,2 | Freq. Percent Cum. ------------+----------------------------------- | 9,986 99.86 99.86 197 | 3 0.03 99.89 203 | 8 0.08 99.97 270 | 1 0.01 99.98 430 | 1 0.01 99.99 433 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016