Edgeworth expansions compared to full analytical distributions, for Gaussian power spectra. Left panel: x = 0, L σP = 20, N = 16; solid: analytical, dashed: 0-order Edg., dotted: 3rd order Edg., dash-dotted: 4th order Edg. Right panel: x/L = 0.5, L σP = 100, N = 32; solid: analytical, dashed: 0-order Edg., dotted: 3rd order Edg., dash-dotted: 6th order Edg.
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