PDFs as functions of reduced densities ν = δ/σ, smoothed with different methods. Left and central panels show simulation L1024.1 smoothed with a B₃ spline and the cubic-cell method, respectively, using a smoothing kernel length R = 4 h⁻¹ Mpc. Right panel: Simulation L256.2 smoothed with the top-hat method with a kernel R = 2 h⁻¹ Mpc. The smoothing rank is the first index in the simulation name, and the redshift is the second index. Colours indicate the evolutionary epoch z = 30, 10, 5, 3, 1, and 0. The dashed bold curves show the Gaussian distribution.