Frequencies for first 10,000 rows of httake variable in namcs2009 dataset : height | measured | Freq. Percent Cum. ------------+----------------------------------- no | 4,545 45.45 45.45 yes | 5,455 54.55 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016