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Figure 5
Compositional correlations between the concentrations of different elements obtained by EDX. The upper triangle lists the numerical value of each correlation coefficient; the lower triangle contains a sketched representation of the correlation level and sign. Elements in the diagonal are ordered from top to bottom in descending order of the first principal component so that elements with high positive and negative correlations are located, respectively, at the top and bottom of the table. The color bar to the right shows the color mapped correlation coefficients used in both triangles.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 51| Part 4| August 2018| Pages 1050-1058
https://doi.org/10.1107/S1600576718007343
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