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  • eigenvector
  • In both cases, components are generated by an eigenvector decomposition of the matrix formed from the sum of substitution matrix scores at each aligned position between each pair of sequences - computed with one of the available score matrices, such as BLOSUM62 , PAM250 , or the simple single nucleotide substitution matrix . (jalview.org)
  • Initially, the display shows the first three components of the similarity space, but any eigenvector can be used by changing the selected dimension for the x, y, or z axis through each ones menu located below the 3d display. (jalview.org)
  • image
  • The File menu allows the view to be saved ( File→Save submenu) as an EPS or PNG image or printed, and the original alignment data and matrix resulting from its PCA analysis to be retrieved. (jalview.org)
  • Twenty-one morphometric measurements were made on tiled, composite images of complete flatmounts, including cell location, area, and eccentricity, using automated image analysis software for quantitatively measuring cell phenotypes. (arvojournals.org)
  • complete
  • The advantage of NIPALS over more traditional methods, like SVD, is that it is memory efficient, and can complete early if only a small number of principal components are needed. (haskell.org)
  • space
  • across the space around our first component. (coursera.org)
  • The coordinates for the whole PCA space, or just the current view may also be exported as CSV files for visualization in another program or further analysis. (jalview.org)
  • African
  • The principal settings for the study were the United States and South African markets representing, respectively, a developed and developing market. (scielo.org.za)