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Advanced Structural and Chemical Imaging
Table 3 The number of components to truncate according to the different truncation methods: the evaluation of a scree plot with visual localisation of the inflection point ("
Scree plot method for truncation of principal components
" section), the approach of Gavish and Donoho ("
Analytical model-based methods for truncating principal components
" section) and the anisotropy method ("
Anisotropy method for truncation of principal components
" section) with using the projected histograms and the anisotropy threshold of 0.5
Optimal principal component analysis of STEM XEDS spectrum images
Gavish and Donoho
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