Frequencies for first 10,000 rows of drg6ing2 variable in nhamcsopd1998 dataset : ingredient | code #2 for | medication | #6 | Freq. Percent Cum. ------------+----------------------------------- | 9,969 99.69 99.69 50728 | 1 0.01 99.70 51290 | 1 0.01 99.71 51340 | 2 0.02 99.73 51708 | 1 0.01 99.74 51935 | 1 0.01 99.75 52650 | 1 0.01 99.76 52883 | 1 0.01 99.77 53050 | 2 0.02 99.79 53280 | 1 0.01 99.80 53445 | 2 0.02 99.82 53670 | 1 0.01 99.83 54455 | 2 0.02 99.85 54465 | 2 0.02 99.87 54800 | 1 0.01 99.88 54890 | 3 0.03 99.91 55105 | 1 0.01 99.92 55845 | 1 0.01 99.93 55925 | 3 0.03 99.96 55997 | 1 0.01 99.97 56185 | 1 0.01 99.98 56194 | 2 0.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016