Frequencies for first 10,000 rows of httake variable in nhamcsopd2011 dataset : Height | taken | Freq. Percent Cum. ------------+----------------------------------- No | 4,611 46.11 46.11 Yes | 5,389 53.89 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016