Frequencies for first 10,000 rows of drg2ing3 variable in nhamcsopd2003 dataset : ingredient code #3 for medication | #2 | Freq. Percent Cum. ------------------------------------+----------------------------------- caffeine | 1 0.01 0.01 magnesium antacids | 2 0.02 0.03 methylene blue | 1 0.01 0.04 mineral oil | 2 0.02 0.06 potassium replacement solutions | 8 0.08 0.14 pramoxine | 1 0.01 0.15 promethazine | 1 0.01 0.16 pyridoxine | 1 0.01 0.17 riboflavin | 35 0.35 0.52 rubella virus vaccine | 8 0.08 0.60 tetanus toxoid | 3 0.03 0.63 thiamine | 1 0.01 0.64 haemophilus b conjugate vaccine | 1 0.01 0.65 carbohydrate(s) | 1 0.01 0.66 abacavir sulfate | 2 0.02 0.68 polymyxin b sulfate | 5 0.05 0.73 pseudoephedrine hcl | 1 0.01 0.74 dextroamphetamine saccharate | 11 0.11 0.85 dextromethorphan hbr | 3 0.03 0.88 phenylephrine hcl | 4 0.04 0.92 neomycin sulfate | 5 0.05 0.97 pyrilamine tannate | 1 0.01 0.98 pheniramine maleate | 2 0.02 1.00 chlorophyllin copper complex | 1 0.01 1.01 bellafoline | 1 0.01 1.02 butyl aminobenzoate | 3 0.03 1.05 tetanus vaccine | 17 0.17 1.22 mineral wax | 1 0.01 1.23 pertussis toxin | 2 0.02 1.25 . | 9,875 98.75 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016