Comparison of phylogenetic signal in seven map combinations.

chr, surface curvature, height, and radius; Nxyz, vertex normal; Nxy, two elements of vertex normal; Nxyzr, vertex normal and radius; c, surface curvature; hr, height and radius; chrNxyz, surface curvature, height, radius, and vertex normal. Size of low-pass filter is equal to the number of the set of Fourier coefficients for the analysis.

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