Fig. 3 | Scientific Reports

Fig. 3

From: Cluster analysis reveals increasing plume-like magmatism during progressive rifting in Afar (Ethiopia)

Fig. 3

Samples distribution and principal component analysis (PCA) of test 2 hierarchical clustering BCC. Geographic distribution of the samples used in test 2 (a) and PCA plot showing sample scores of the first two principal components (b; PCA1 and PCA2), with samples colored according to their cluster number (7 clusters identified by BCC). (c) Contribution of each variable to the first two principal components, represented by loading vectors (red lines). The percentage of total variance explained by PCA1 and PCA2 is indicated in parentheses. The corresponding K-means clustering results are provided in Supplementary Figs. S3 and S4 for comparison. This figure was created using ArcGIS Pro 3.4.0 (https://www.esri.com/en-us/home) by combining the Terrain - Multi-Directional Hillshade and World Water Bodies layers.

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