Frequencies for first 10,000 rows of drg7ing2 variable in nhamcsopd2003 dataset : ingredient code #2 for medication | #7 | Freq. Percent Cum. ------------------------------------+----------------------------------- magnesium acetate | 5 0.05 0.05 methyltestosterone | 1 0.01 0.06 phenyltoloxamine | 1 0.01 0.07 pyridoxine | 2 0.02 0.09 sodium chloride | 1 0.01 0.10 soybean oil | 1 0.01 0.11 triamterene | 3 0.03 0.14 trimethoprim | 5 0.05 0.19 vitamin d | 1 0.01 0.20 vitamin b | 1 0.01 0.21 salmeterol | 2 0.02 0.23 bisoprolol fumarate | 1 0.01 0.24 metformin | 1 0.01 0.25 propoxyphene napsylate | 1 0.01 0.26 hydrocodone bitartrate | 12 0.12 0.38 codeine phosphate | 2 0.02 0.40 phenylpropanolamine hcl | 1 0.01 0.41 pseudoephedrine hcl | 1 0.01 0.42 amphetamine sulfate | 1 0.01 0.43 oxycodone hcl | 5 0.05 0.48 clavulanate potassium | 1 0.01 0.49 albuterol sulfate | 1 0.01 0.50 epinephrine bitartrate | 1 0.01 0.51 betamethasone dipropionate | 1 0.01 0.52 . | 9,948 99.48 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016