Frequencies for first 10,000 rows of rx5v1c4 variable in nhamcsed2011 dataset : For RX5, | level 1 of | MULTUM drug | category #4 | (broad | level) | Freq. Percent Cum. ------------+----------------------------------- | 9,992 99.92 99.92 057 | 8 0.08 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016