Frequencies for first 10,000 rows of rx5v2c4 variable in nhamcsopd2011 dataset : For RX5, | level 2 of | MULTUM drug | category #4 | (intermedia | te level) | Freq. Percent Cum. ------------+----------------------------------- | 9,991 99.91 99.91 066 | 8 0.08 99.99 104 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016