Frequencies for first 10,000 rows of comstat16 variable in nhamcsed2015 dataset Composition status | code for | medication #16 | Freq. Percent Cum. -------------------+----------------------------------- Single entity drug | 57 0.57 0.57 Combination drug | 5 0.05 0.62 . | 9,938 99.38 100.00 -------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 20 Nov 2017