On graphing paired data

Don O N McNeil*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)

    Abstract

    Techniques for graphing paired data are considered. A conventional method frequently used when reporting scientific results, particularly in medical journals, involves representing pairs of measurements by straight line segments titled at different angles related to the differences between the components of the data pairs. However when the sample size is only moderately large, this type of display can become cluttered and thus uninformative due to overlap. It is suggested that a new graph that combines features of ANOVA plots and multivalued dot charts may provide a more effective visual display of paired data. A designed experiment in data perception using simulated data provides some evidence in favor of this parallel line plot.

    Original languageEnglish
    Pages (from-to)307-311
    Number of pages5
    JournalAmerican Statistician
    Volume46
    Issue number4
    DOIs
    Publication statusPublished - 1992

    Keywords

    • ANOVA plot
    • Dot chart
    • Graphical display
    • Parallel coordinates
    • Parallel line plot
    • Repeated measurements

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