We generated artificial experiments in the 10 -2 -10 6 Hz frequency range with 10 points per decade . For the exact impedance 𝑍 exact (𝑓), we studied the single ZARC, 2×ZARC, piecewise constant (PWC), Gerischer, and "hook" models . Table shows the analytical expressions of each impedance and DRT model; the parameters used are reported in Tables S2, , and S4. Each synthetic impedance 𝑍 exp (𝑓) was obtained by corrupting the exact impedance with various error models.