Frequencies for first 10,000 rows of drg2ing3 variable in nhamcsopd1996 dataset : ingredient | code #3 for | medication | #2 | Freq. Percent Cum. ------------+----------------------------------- | 9,862 98.62 98.62 50637 | 3 0.03 98.65 50745 | 6 0.06 98.71 51443 | 1 0.01 98.72 51670 | 1 0.01 98.73 52450 | 1 0.01 98.74 52885 | 16 0.16 98.90 52908 | 4 0.04 98.94 53175 | 7 0.07 99.01 53720 | 1 0.01 99.02 53915 | 3 0.03 99.05 54325 | 11 0.11 99.16 54328 | 1 0.01 99.17 54330 | 2 0.02 99.19 54400 | 1 0.01 99.20 54465 | 11 0.11 99.31 54595 | 6 0.06 99.37 54735 | 1 0.01 99.38 54755 | 1 0.01 99.39 54990 | 10 0.10 99.49 54995 | 3 0.03 99.52 55105 | 29 0.29 99.81 55130 | 10 0.10 99.91 55240 | 4 0.04 99.95 55320 | 1 0.01 99.96 55715 | 1 0.01 99.97 55745 | 1 0.01 99.98 55755 | 1 0.01 99.99 57028 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016