Frequencies for first 10,000 rows of drg4ing2 variable in nhamcsopd1998 dataset : ingredient | code #2 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,896 98.96 98.96 50410 | 1 0.01 98.97 50575 | 1 0.01 98.98 50728 | 1 0.01 98.99 51290 | 3 0.03 99.02 51340 | 5 0.05 99.07 51903 | 7 0.07 99.14 51935 | 2 0.02 99.16 52490 | 2 0.02 99.18 52645 | 1 0.01 99.19 52650 | 3 0.03 99.22 52955 | 1 0.01 99.23 52990 | 1 0.01 99.24 53050 | 1 0.01 99.25 53175 | 1 0.01 99.26 53220 | 1 0.01 99.27 53280 | 5 0.05 99.32 53600 | 1 0.01 99.33 53720 | 1 0.01 99.34 53754 | 1 0.01 99.35 53780 | 11 0.11 99.46 53820 | 5 0.05 99.51 53895 | 1 0.01 99.52 53905 | 1 0.01 99.53 53965 | 1 0.01 99.54 54094 | 3 0.03 99.57 54320 | 1 0.01 99.58 54395 | 1 0.01 99.59 54455 | 4 0.04 99.63 54890 | 6 0.06 99.69 54960 | 1 0.01 99.70 54990 | 3 0.03 99.73 55315 | 1 0.01 99.74 55925 | 2 0.02 99.76 55997 | 11 0.11 99.87 56185 | 1 0.01 99.88 56194 | 3 0.03 99.91 56345 | 2 0.02 99.93 57033 | 1 0.01 99.94 57122 | 1 0.01 99.95 57146 | 1 0.01 99.96 57208 | 1 0.01 99.97 80007 | 2 0.02 99.99 91011 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016