Frequencies for first 10,000 rows of drg4ing2 variable in nhamcsopd1993 dataset : ingredient | code #2 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,925 99.25 99.25 50410 | 2 0.02 99.27 50728 | 1 0.01 99.28 50745 | 1 0.01 99.29 50920 | 1 0.01 99.30 51130 | 1 0.01 99.31 51290 | 1 0.01 99.32 51340 | 3 0.03 99.35 51935 | 1 0.01 99.36 52023 | 2 0.02 99.38 52645 | 1 0.01 99.39 52650 | 4 0.04 99.43 52720 | 1 0.01 99.44 52825 | 1 0.01 99.45 52885 | 1 0.01 99.46 53003 | 1 0.01 99.47 53050 | 1 0.01 99.48 53175 | 7 0.07 99.55 53720 | 2 0.02 99.57 53780 | 1 0.01 99.58 53820 | 5 0.05 99.63 53895 | 3 0.03 99.66 53970 | 1 0.01 99.67 54094 | 3 0.03 99.70 54160 | 1 0.01 99.71 54465 | 1 0.01 99.72 54755 | 1 0.01 99.73 54890 | 5 0.05 99.78 54960 | 2 0.02 99.80 55320 | 2 0.02 99.82 55925 | 6 0.06 99.88 55997 | 7 0.07 99.95 56020 | 2 0.02 99.97 56185 | 1 0.01 99.98 56192 | 1 0.01 99.99 56194 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016