Frequencies for first 10,000 rows of einseligo variable in nhamcsopd2011 dataset : Does your OPD verify an individual | patient's insurance eligibility | electronicall | Freq. Percent Cum. ----------------------------------------+----------------------------------- Blank | 10,000 100.00 100.00 ----------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016