Frequencies for first 10,000 rows of drg4ing2 variable in nhamcsopd1997 dataset : ingredient | code #2 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,921 99.21 99.21 50728 | 3 0.03 99.24 51340 | 3 0.03 99.27 52355 | 1 0.01 99.28 52490 | 1 0.01 99.29 52501 | 2 0.02 99.31 52650 | 2 0.02 99.33 53175 | 4 0.04 99.37 53220 | 2 0.02 99.39 53280 | 2 0.02 99.41 53445 | 3 0.03 99.44 53780 | 1 0.01 99.45 53820 | 6 0.06 99.51 53875 | 1 0.01 99.52 54094 | 2 0.02 99.54 54455 | 5 0.05 99.59 54890 | 5 0.05 99.64 54960 | 4 0.04 99.68 54990 | 7 0.07 99.75 55105 | 2 0.02 99.77 55925 | 4 0.04 99.81 55997 | 10 0.10 99.91 56020 | 1 0.01 99.92 56194 | 1 0.01 99.93 56195 | 2 0.02 99.95 56355 | 2 0.02 99.97 57022 | 1 0.01 99.98 57208 | 1 0.01 99.99 80007 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016