Decent Essays
Fig. 18 (page: 84), Fig. 19 (page: 85) and Fig. 20 (page: 86), with markers of areas and labels of styles shows the distribution status of areas by PCA and different areas where samples were collected are marked different colours and each sample is labeled with its style. However, the element lead is included in Fig. 18, but excluded in Fig. 19 and Fig. 20. Comparing Fig. 18 and Fig. 19, although there is no big difference which indicates that lead should not be the major indicator of PCA, the distribution has a slight change. Thus, together with lead’s chemical characteristics – it is easy penetrated into body clay which would impact on the PCA result, the author decided to use Fig. 19 to perform an analysis. Besides, due to the high…show more content…
4) Within the rectangle, samples from different collection areas also exhibits their own aggregated characters. For example, a) all samples falling into the rectangle from area H are gathered in the right side of the chart circled in a yellow ellipse; b) It is almost same appearance to samples from area B; c) None of the samples collected from area Q falls outside the majority and except for two sherds, others are centred into one group circled in a green ellipse; d) except for one sherd falling outside the rectangle, samples from area S are aggregated in the very left side within the rectangle circled with a mustard ellipse which is next to the green one. e) None of the samples from area P falls outside the majority, however, it seems all of them cannot be gathered into one group, so except for two sherds in the green oval, there are one big and one small ellipses are drawn for them; f) this is the same as samples from area P, those from area K are similar, however, there are six
Get Access