Frequencies for first 10,000 rows of rx5v3c3 variable in nhamcsopd2010 dataset : for rx5, | level 3 of | multum drug | category #3 | Freq. Percent Cum. ------------+----------------------------------- | 9,980 99.80 99.80 197 | 4 0.04 99.84 203 | 16 0.16 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016