Frequencies for first 10,000 rows of prov2095 variable in pos1999 dataset : spec: | cardiovascu | lar | Freq. Percent Cum. ------------+----------------------------------- | 9,372 93.72 93.72 N | 582 5.82 99.54 Y | 46 0.46 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016