Prescription for choosing an interpolating function (Q2795549)

The author proposes several quantities as the reference quantities for selecting a good interpolating function. Correlation between the set of these quantities and the actual deviation between the true function \(F(g)\) and its interpolating function \(G(g)\), where \(g\) is a parameter of interest is important to check the quality of references. Considering examples where the actual function is known the author examines the reference quantities by computing the correlation coefficients. Stating that a criterion suggested in [\textit{M. Honda}, J. High Energy Phys. 2014, No. 12, Paper No. 019, 43 p. (2014; Zbl 1338.81288)] was insufficient the authors observe that as a first step they worked by using several examples only and that further studies were needed to establish a very general criterion.