Frequencies for first 10,000 rows of mraceimp variable in natl1992 dataset : Race of | Mother | Imputation | Flag | Freq. Percent Cum. ------------+----------------------------------- | 9,997 99.97 99.97 2 | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015