Mean PEP-versus-<i>R</i> curve obtained by taking an average over the 54 realizations derived from the NSR-RRI Database of the PhysioNet in each data-truncation case: (a) zoom-in version, (b) zoom-out version. ChenSzi-Wen ChaoShih-Chieh 2014 <p>Mean PEP-versus-<i>R</i> curve obtained by taking an average over the 54 realizations derived from the NSR-RRI Database of the PhysioNet in each data-truncation case: (a) zoom-in version, (b) zoom-out version.</p>