Frequencies for first 10,000 rows of drg6ing1 variable in nhamcsopd1998 dataset : ingredient | code #1 for | medication | #6 | Freq. Percent Cum. ------------+----------------------------------- | 9,965 99.65 99.65 50005 | 7 0.07 99.72 50088 | 1 0.01 99.73 50410 | 1 0.01 99.74 50585 | 1 0.01 99.75 50770 | 1 0.01 99.76 50899 | 2 0.02 99.78 51345 | 1 0.01 99.79 51545 | 1 0.01 99.80 51903 | 1 0.01 99.81 52075 | 2 0.02 99.83 52485 | 2 0.02 99.85 52490 | 2 0.02 99.87 52645 | 4 0.04 99.91 52990 | 2 0.02 99.93 53780 | 3 0.03 99.96 53915 | 1 0.01 99.97 54990 | 1 0.01 99.98 55555 | 1 0.01 99.99 56185 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016