Frequencies for first 10,000 rows of rx18cat2 variable in namcs2014 dataset : For RX18, | MULTUM drug | category #2 | - detailed | Freq. Percent Cum. ------------+----------------------------------- | 9,987 99.87 99.87 053 | 1 0.01 99.88 123 | 1 0.01 99.89 198 | 2 0.02 99.91 203 | 1 0.01 99.92 211 | 3 0.03 99.95 219 | 2 0.02 99.97 340 | 1 0.01 99.98 385 | 1 0.01 99.99 445 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 27 Mar 2017