Frequencies for first 10,000 rows of drg4ing2 variable in nhamcsopd2000 dataset : ingredient | code #2 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,900 99.00 99.00 50410 | 1 0.01 99.01 50728 | 4 0.04 99.05 50920 | 1 0.01 99.06 51064 | 1 0.01 99.07 51130 | 1 0.01 99.08 51290 | 1 0.01 99.09 51340 | 2 0.02 99.11 51665 | 1 0.01 99.12 51903 | 2 0.02 99.14 52490 | 1 0.01 99.15 52650 | 5 0.05 99.20 52720 | 1 0.01 99.21 52845 | 1 0.01 99.22 52883 | 3 0.03 99.25 53175 | 2 0.02 99.27 53220 | 1 0.01 99.28 53280 | 6 0.06 99.34 53445 | 5 0.05 99.39 53754 | 1 0.01 99.40 53780 | 1 0.01 99.41 53820 | 9 0.09 99.50 53891 | 2 0.02 99.52 53895 | 1 0.01 99.53 54094 | 2 0.02 99.55 54158 | 1 0.01 99.56 54405 | 1 0.01 99.57 54455 | 2 0.02 99.59 54465 | 3 0.03 99.62 54890 | 4 0.04 99.66 54960 | 3 0.03 99.69 54995 | 1 0.01 99.70 55105 | 1 0.01 99.71 55160 | 1 0.01 99.72 55850 | 1 0.01 99.73 55925 | 5 0.05 99.78 55997 | 15 0.15 99.93 56194 | 1 0.01 99.94 56355 | 1 0.01 99.95 57033 | 1 0.01 99.96 57146 | 2 0.02 99.98 57208 | 2 0.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016