Frequencies for first 10,000 rows of drg5ing2 variable in nhamcsopd1993 dataset : ingredient | code #2 for | medication | #5 | Freq. Percent Cum. ------------+----------------------------------- | 9,960 99.60 99.60 50410 | 1 0.01 99.61 50575 | 2 0.02 99.63 50728 | 1 0.01 99.64 50730 | 1 0.01 99.65 51290 | 1 0.01 99.66 51340 | 5 0.05 99.71 51935 | 2 0.02 99.73 52055 | 1 0.01 99.74 52490 | 1 0.01 99.75 52845 | 1 0.01 99.76 53003 | 1 0.01 99.77 53050 | 1 0.01 99.78 53175 | 3 0.03 99.81 53600 | 1 0.01 99.82 53780 | 1 0.01 99.83 53820 | 1 0.01 99.84 54094 | 3 0.03 99.87 54890 | 1 0.01 99.88 55320 | 1 0.01 99.89 55590 | 1 0.01 99.90 55925 | 3 0.03 99.93 55997 | 5 0.05 99.98 56185 | 1 0.01 99.99 57033 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016