Frequencies for first 10,000 rows of drg5ing1 variable in nhamcsopd1998 dataset : ingredient | code #1 for | medication | #5 | Freq. Percent Cum. ------------+----------------------------------- | 9,926 99.26 99.26 50000 | 1 0.01 99.27 50005 | 13 0.13 99.40 50088 | 1 0.01 99.41 50145 | 5 0.05 99.46 50585 | 2 0.02 99.48 50770 | 1 0.01 99.49 50933 | 2 0.02 99.51 51130 | 1 0.01 99.52 51635 | 1 0.01 99.53 51670 | 1 0.01 99.54 51675 | 1 0.01 99.55 51890 | 3 0.03 99.58 51903 | 1 0.01 99.59 52045 | 1 0.01 99.60 52065 | 2 0.02 99.62 52318 | 1 0.01 99.63 52490 | 3 0.03 99.66 52645 | 5 0.05 99.71 52990 | 1 0.01 99.72 53003 | 1 0.01 99.73 53255 | 1 0.01 99.74 53723 | 1 0.01 99.75 53780 | 12 0.12 99.87 54990 | 1 0.01 99.88 55555 | 7 0.07 99.95 56193 | 3 0.03 99.98 56261 | 1 0.01 99.99 56345 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016