Illustration of the inter-percentile analysis performed by LiMe (Fernández et al. 2023, fully documented in https://lime-stable.readthedocs.io/en/latest/). Shown are the [O III] 5007 line profile of the LCE J115204+340049. The velocity percentiles v_p enclosing p% of the total line integrated flux are indicated with vertical dotted lines. The red arrow line illustrates the full width at zero intensity (FWZI) computed as v₁₀₀ − v₀. The inset also shows values for the derived relevant quantities, including w₈₀ (blue arrow) and the median (v_med) and peak velocity (v_peak), the latter assumed to be the systemic velocity (see Section 2).