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. 2017 Oct 12;12(10):e0185971. doi: 10.1371/journal.pone.0185971

Fig 7. Similarity matrix for all burials that yielded skeletal remains (both right-flexed and left-flexed; n = 281).

Fig 7

This matrix expresses the similarity of any two graves in the high-quality dataset on a scale of 0 to 1 (0 for complete disparity, 1 for complete similarity) by means of the cosine similarity index. Axis labels indicate the position of the deceased and the country in which the grave is located. The following abbreviations apply: DK = Denmark, SH/NI = Schleswig-Holstein and Niedersachsen, NL = the Netherlands, HE = Hessen, SA/TH = Sachsen-Anhalt and Thuringia, BO = Bohemia and MO = Moravia. The graves have been sorted on the vertical and horizontal axis based on the values of the cosine similarity index (highest values in top-left corner) and their country of origin for optimal display. The similarity matrix indicates that left-flexed graves are most similar to graves in the same or nearby areas, whereas right-flexed graves display relatively high similarities regardless of geographic regions.