Frequencies for first 10,000 rows of drg2ing3 variable in nhamcsopd1995 dataset : ingredient | code #3 for | medication | #2 | Freq. Percent Cum. ------------+----------------------------------- | 9,888 98.88 98.88 50637 | 3 0.03 98.91 50745 | 5 0.05 98.96 52490 | 1 0.01 98.97 52885 | 3 0.03 99.00 52908 | 3 0.03 99.03 53175 | 2 0.02 99.05 54325 | 5 0.05 99.10 54328 | 2 0.02 99.12 54330 | 2 0.02 99.14 54350 | 1 0.01 99.15 54395 | 3 0.03 99.18 54455 | 6 0.06 99.24 54465 | 16 0.16 99.40 54468 | 1 0.01 99.41 54595 | 9 0.09 99.50 54960 | 1 0.01 99.51 54990 | 7 0.07 99.58 54995 | 7 0.07 99.65 55105 | 16 0.16 99.81 55130 | 12 0.12 99.93 55240 | 4 0.04 99.97 55745 | 1 0.01 99.98 55755 | 1 0.01 99.99 57058 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016