Statistical analysis with cosmic-expansion-rate measurements and two-point diagnostics Xiaogang Zheng, Marek Biesiada, Xuheng Ding, Shuo Cao, Sixuan Zhang and Zong-Hong Zhu Eur. Phys. J. C, 78 3 (2018) 274 Published online: 29 March 2018 DOI: 10.1140/epjc/s10052-018-5759-3