Frequencies for first 10,000 rows of paymcaid variable in nhamcsopd2005 dataset : expected | source of | payment: | medicaid | Freq. Percent Cum. ------------+----------------------------------- no | 5,114 51.14 51.14 yes | 4,886 48.86 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016