Frequencies for first 10,000 rows of paywkcmp variable in nhamcsopd2010 dataset : expected | source(s) | of payment | for this | visit: | workers | compensatio | n | Freq. Percent Cum. ------------+----------------------------------- no | 9,896 98.96 98.96 yes | 104 1.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016