Frequencies for first 10,000 rows of timemdfl variable in nhamcsopd1999 dataset : was time | spent with | physician | imputed? | Freq. Percent Cum. ------------+----------------------------------- 0 | 5,077 50.77 50.77 1 | 4,923 49.23 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016