Frequencies for first 10,000 rows of temptake variable in nhamcsopd2003 dataset : temperature | Freq. Percent Cum. ------------+----------------------------------- no | 6,202 62.02 62.02 yes | 3,798 37.98 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016