Frequencies for first 10,000 rows of drg8ing3 variable in nhamcsed2004 dataset : ingredient code #3 for medication | #8 | Freq. Percent Cum. ------------------------------------+----------------------------------- pyridoxine | 1 0.01 0.01 riboflavin | 1 0.01 0.02 rubella virus vaccine | 1 0.01 0.03 thiamine | 1 0.01 0.04 vitamin b complex | 1 0.01 0.05 pheniramine maleate | 1 0.01 0.06 . | 9,994 99.94 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016