Frequencies for first 10,000 rows of drg2ing4 variable in nhamcsopd2004 dataset : ingredient code #4 for medication | #2 | Freq. Percent Cum. ------------------------------------+----------------------------------- magnesium antacids | 2 0.02 0.02 panthenol | 1 0.01 0.03 potassium ion | 1 0.01 0.04 propylene glycol | 1 0.01 0.05 riboflavin | 2 0.02 0.07 silicone | 1 0.01 0.08 sodium chloride | 2 0.02 0.10 sorbic acid | 1 0.01 0.11 soybean oil | 1 0.01 0.12 thiamine | 77 0.77 0.89 vitamin a | 1 0.01 0.90 vitamin b-12 | 1 0.01 0.91 vitamin c | 1 0.01 0.92 zinc topical agents, external use | 2 0.02 0.94 calendula | 1 0.01 0.95 codeine phosphate | 1 0.01 0.96 dextroamphetamine sulfate | 4 0.04 1.00 hyoscyamine sulfate | 1 0.01 1.01 dextromethorphan hbr | 1 0.01 1.02 zinc acetate | 1 0.01 1.03 calcium chloride | 3 0.03 1.06 magnesium acid citrate | 1 0.01 1.07 woolwax alcohol | 4 0.04 1.11 filamentous hemagglutinin | 4 0.04 1.15 . | 9,885 98.85 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016