It often occurs that the measured EIS data is truncated at low frequencies due to time constraints, or at high frequencies due to experimental setup issues. In such cases, a direct evaluation of the 𝑅 p as the diameter of the Nyquist plot may prove either inaccurate or impossible. For these reasons, it is crucial to find out how the set of probed frequencies influences the 𝑅 p prediction. To that end, we considered three truncated ranges with 10 ppd, i.e., from 10 -1 to 10 6 Hz (truncation at low frequencies, 71 frequencies probed), 10 -2 to 10 2 Hz (truncation at intermediate frequencies, 41 frequencies probed), and 10 -2 to 10 3 Hz (truncation at high frequencies, 51 frequencies probed).