Frequencies for first 10,000 rows of drg6ing2 variable in nhamcsopd1997 dataset : ingredient | code #2 for | medication | #6 | Freq. Percent Cum. ------------+----------------------------------- | 9,973 99.73 99.73 51235 | 1 0.01 99.74 51340 | 4 0.04 99.78 52023 | 1 0.01 99.79 52645 | 1 0.01 99.80 52650 | 1 0.01 99.81 53175 | 1 0.01 99.82 53965 | 1 0.01 99.83 54890 | 1 0.01 99.84 54990 | 1 0.01 99.85 55105 | 2 0.02 99.87 55320 | 1 0.01 99.88 55580 | 1 0.01 99.89 55925 | 4 0.04 99.93 55997 | 3 0.03 99.96 56194 | 2 0.02 99.98 57136 | 1 0.01 99.99 57146 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016