Frequencies for first 10,000 rows of f_meduc variable in natlterr2006 dataset : Education | of Mother | (meduc) R | Freq. Percent Cum. ------------+----------------------------------- 0 | 6,282 62.82 62.82 1 | 3,718 37.18 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015