Frequencies for first 10,000 rows of prov3285 variable in pos2007 dataset : srv: | physician-o | ffsite-resi | dents | Freq. Percent Cum. ------------+----------------------------------- | 7,522 75.22 75.22 N | 1,895 18.95 94.17 Y | 583 5.83 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016