Average error between the inferred and the original values from the simulation in the range log τ₅₀₀ = [ − 0.5, −1.5] for different scenarios and different inversion configurations. The error is measured as the standard deviation. The left panel shows the error in temperature, the middle magnetic field strength, and the right panel velocity. In each panel from left to right: inversions using the original spectra, degraded spectra, degraded spectra with noise, and degraded spectra with noise sampled according to the Nyquist-Shannon theorem at the corresponding spectral resolution.