Frequencies for first 10,000 rows of asthmap variable in namcs2015 dataset : Asthma | action plan | given to | patient | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,990 99.90 99.90 1 | 10 0.10 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 25 Oct 2017