Frequencies for first 10,000 rows of neuro variable in namcs2013 dataset : Neurologic | Freq. Percent Cum. ------------+----------------------------------- No | 9,233 92.33 92.33 Yes | 767 7.67 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 27 Mar 2017