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Publication Detail
Back to basics: Qualitative analysis, introduction
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Davies AMC, Fearn T
  • Publication date:
    01/04/2008
  • Pagination:
    15, 17
  • Journal:
    Spectroscopy Europe
  • Volume:
    20
  • Issue:
    2
  • Status:
    Published
  • Print ISSN:
    0966-0941
Abstract
A study has addressed the problems associated with the qualitative aspect of the spectral analysis and also illustrated the basic views regarding the issues with supervised (discriminant analysis) or unsupervised statistical (cluster analysis) classification methods. The analysis has also pointed the challenges in measuring the statistical distances used in the classification methods. More work of the statistics can improve finding of standard errors, distance measures, decisions, boundaries, prior probabilities, and misclassifications. The distance measurement aspect has covered fundamentals of measuring Euclidean distance, angles between vectors, standardizing the length, and relation with Euclidean distance. The study has also examined the use of the correlation coefficient as a distance measure and the resultant information shows the similarities with SNV pretreatment.
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