Frequencies for first 10,000 rows of prov3495 variable in pos2008 dataset : srv: | clinical | lab-offsite | -resident | Freq. Percent Cum. ------------+----------------------------------- | 7,661 76.61 76.61 N | 1,746 17.46 94.07 Y | 593 5.93 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016