Frequencies for first 10,000 rows of drg5ing1 variable in nhamcsopd1996 dataset : ingredient | code #1 for | medication | #5 | Freq. Percent Cum. ------------+----------------------------------- | 9,936 99.36 99.36 50000 | 1 0.01 99.37 50005 | 14 0.14 99.51 50145 | 1 0.01 99.52 50260 | 1 0.01 99.53 50410 | 1 0.01 99.54 50585 | 2 0.02 99.56 51130 | 2 0.02 99.58 51340 | 1 0.01 99.59 51635 | 2 0.02 99.61 52075 | 1 0.01 99.62 52318 | 2 0.02 99.64 52490 | 3 0.03 99.67 52615 | 1 0.01 99.68 52645 | 4 0.04 99.72 52990 | 1 0.01 99.73 53780 | 15 0.15 99.88 55555 | 12 0.12 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016