Figure 9
From: Hyaenas and early humans in the latest Early Pleistocene of South-Western Europe
Analyses of archaeological artefacts based on eigenvectors. (A) Probability density stereogram, red triangle = maximum eigenvector, yellow hexagon = mean vector, and point cloud is from bootstrapping analysis of 1000 resamples (99.9% confidence). (B) Density stereogram with Fisher distribution method. (C) Circular histogram of orientations. (D) Vollmer PGR plot (performed using orient and OpenStereo softwares; presentation by N.F.R. using Inkscape).
