Frequencies for first 10,000 rows of drg4ing1 variable in nhamcsopd2002 dataset : ingredient | code #1 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,884 98.84 98.84 50005 | 18 0.18 99.02 50145 | 1 0.01 99.03 50260 | 3 0.03 99.06 50283 | 1 0.01 99.07 50410 | 3 0.03 99.10 50570 | 2 0.02 99.12 50806 | 1 0.01 99.13 51290 | 2 0.02 99.15 51340 | 1 0.01 99.16 51520 | 1 0.01 99.17 51645 | 1 0.01 99.18 51910 | 3 0.03 99.21 51935 | 1 0.01 99.22 52040 | 1 0.01 99.23 52045 | 3 0.03 99.26 52070 | 1 0.01 99.27 52075 | 2 0.02 99.29 52318 | 2 0.02 99.31 52354 | 4 0.04 99.35 52447 | 3 0.03 99.38 52490 | 1 0.01 99.39 52548 | 1 0.01 99.40 52645 | 8 0.08 99.48 52883 | 3 0.03 99.51 52885 | 1 0.01 99.52 53255 | 4 0.04 99.56 53723 | 1 0.01 99.57 53780 | 21 0.21 99.78 53805 | 1 0.01 99.79 53915 | 1 0.01 99.80 53970 | 1 0.01 99.81 55555 | 7 0.07 99.88 56261 | 5 0.05 99.93 56345 | 1 0.01 99.94 59606 | 3 0.03 99.97 70212 | 2 0.02 99.99 70256 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016