Frequencies for first 10,000 rows of rx24cat2 variable in namcs2015 dataset : For RX24, | MULTUM drug | category #2 | - detailed | Freq. Percent Cum. ------------+----------------------------------- | 9,997 99.97 99.97 053 | 1 0.01 99.98 123 | 1 0.01 99.99 401 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 25 Oct 2017