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Interactive Biplots for Visual Modelling

In: COMPSTAT 2004 — Proceedings in Computational Statistics

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  • Heike Hofmann

    (Iowa State University, Department of Statistics)

Abstract

The link between statistical models and visualisation techniques is not very well explored, even though strong connections do exist. This paper describes how biplots — interactive biplots in particular - can be used for visual modelling. By slightly adjusting the way biplots are constructed they provide the means to display linear models. The goodness of fit of a particular model becomes instantly visible. This makes them a useful addition to the standard set of visualization tools for linear models. Biplots show predicted values and residuals. This helps, firstly, to assess a model far beyond the mere statistics and to detect structural defects in it. Secondly, biplots provide a link between the modelling statistics and the original data. Additional interactive methods such as hotselection also allow the analysis of outlier effects and behaviour.

Suggested Citation

  • Heike Hofmann, 2004. "Interactive Biplots for Visual Modelling," Springer Books, in: Jaromir Antoch (ed.), COMPSTAT 2004 — Proceedings in Computational Statistics, pages 223-234, Springer.
    • Handle: RePEc:spr:sprchp:978-3-7908-2656-2_18
    DOI: 10.1007/978-3-7908-2656-2_18
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