Frequencies for first 10,000 rows of drg5ing2 variable in nhamcsopd1992 dataset : Ingredient | code #2 for | medication | #5 | Freq. Percent Cum. ------------+----------------------------------- | 9,963 99.63 99.63 50410 | 2 0.02 99.65 50728 | 1 0.01 99.66 51175 | 1 0.01 99.67 51935 | 1 0.01 99.68 52650 | 2 0.02 99.70 53175 | 2 0.02 99.72 53780 | 1 0.01 99.73 53820 | 2 0.02 99.75 53895 | 7 0.07 99.82 54094 | 1 0.01 99.83 54455 | 1 0.01 99.84 54595 | 1 0.01 99.85 54890 | 2 0.02 99.87 55115 | 2 0.02 99.89 55525 | 1 0.01 99.90 55925 | 5 0.05 99.95 55997 | 2 0.02 99.97 56020 | 1 0.01 99.98 56194 | 1 0.01 99.99 56250 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016