Frequencies for first 10,000 rows of drg4ing1 variable in nhamcsopd1995 dataset : ingredient | code #1 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,895 98.95 98.95 50000 | 2 0.02 98.97 50005 | 24 0.24 99.21 50145 | 6 0.06 99.27 50283 | 1 0.01 99.28 50410 | 4 0.04 99.32 50460 | 1 0.01 99.33 50530 | 1 0.01 99.34 50585 | 1 0.01 99.35 50620 | 1 0.01 99.36 50690 | 1 0.01 99.37 50770 | 3 0.03 99.40 50811 | 2 0.02 99.42 50899 | 1 0.01 99.43 51130 | 1 0.01 99.44 51305 | 1 0.01 99.45 51335 | 1 0.01 99.46 51340 | 1 0.01 99.47 51670 | 1 0.01 99.48 51903 | 1 0.01 99.49 52035 | 1 0.01 99.50 52045 | 3 0.03 99.53 52070 | 1 0.01 99.54 52490 | 3 0.03 99.57 52615 | 1 0.01 99.58 52645 | 10 0.10 99.68 52655 | 3 0.03 99.71 52885 | 1 0.01 99.72 52990 | 1 0.01 99.73 53255 | 1 0.01 99.74 53723 | 1 0.01 99.75 53780 | 12 0.12 99.87 55555 | 12 0.12 99.99 56345 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016