Frequencies for first 10,000 rows of prov2145 variable in pos1997 dataset : spec: foot | Freq. Percent Cum. ------------+----------------------------------- | 9,456 94.56 94.56 N | 320 3.20 97.76 Y | 224 2.24 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016