Frequencies for first 10,000 rows of temptake variable in namcs2007 dataset : temperature | taken | Freq. Percent Cum. ------------+----------------------------------- no | 5,074 50.74 50.74 yes | 4,926 49.26 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016