Frequencies for first 10,000 rows of othimage variable in nhamcsed2006 dataset : other | imaging | Freq. Percent Cum. ------------+----------------------------------- no | 9,867 98.67 98.67 yes | 133 1.33 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016