Frequencies for first 10,000 rows of rx1cat3 variable in nhamcsed2007 dataset : for rx1, | multum drug | category #3 | - detailed | Freq. Percent Cum. ------------+----------------------------------- | 9,788 97.88 97.88 185 | 1 0.01 97.89 197 | 87 0.87 98.76 203 | 122 1.22 99.98 204 | 1 0.01 99.99 265 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016