File:Correlation ellipses.png

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    Summary

    Description
    English: The dataEllipse function from Fox and Weisberg (2019)[1] was used to compute confidence ellipses around data from Brunz (1974) [2] (the AIRQUALITY dataset in the R base package). The first 3 plots are bivariate correlations and the bottom-right plots the residuals from regression of ozone on the 3 other variables.
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    Author Ldecola

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    1. ↑ Fox, J. (2019) An R companion to applied regression, Sage
    2. ↑ Bruntz, S.M. (1974). "Ozone Concentrations in New Jersey and New York: Statistical Association with Related Variables". Science 186 (4160): 257-259. DOI:10.1126/science.186.4160.257.

    Captions

    Correlations among 4 variables visualized by the 50% and 95% confidence ellipses.

    inception

    12 May 2026

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    image/png

    data size

    80,119 byte

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    1,115 pixel

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    1,116 pixel

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    be1194c6885eaf26b4e5da006a0359abfc565444

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    Date/TimeThumbnailDimensionsUserComment
    current21:38, 13 May 2026Thumbnail for version as of 21:38, 13 May 20261,116 × 1,115 (78 KB)wikimediacommons>Ldecolareversed axes on 3 plots

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