Distribution of computed rest-frame E_cross values. Sources best fit with a power law are shown with a black dotted line, sources best fit with a soft excess are shown as a red solid line, sources best fit with a warm absorber are shown as a blue dash-dot line, and sources best fit with partial covering absorption are shown with an orange dotted line. The median of E_cross = 0.55 keV for the soft excess sample is indicated with a solid red line. The typical error bar is shown in black.