General plots / Radar chart
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Each axis is one measure and each closed line one group; further from the centre means larger.
Measures with different units must be scaled first: by default each axis is min–max scaled over all raw data to 0–1 (0 = smallest sample, 1 = largest); a z-score shows how many standard deviations the group summary lies from the overall mean.
Radar charts suit overview comparisons of 3–12 groups and 5–15 measures; the enclosed area depends on axis order, so do not draw conclusions from area.
The table lists both raw summaries and scaled values for your legend.
Group summaries are means or medians; scaling uses the minimum–maximum, or mean and sample SD, of all observations (not of the group summaries).
Up to 12 groups and 30 axes.
Send us your data and research question and you will receive a written plan within 1 working day: analysis steps, parameter rationale, deliverables and timeline. Quoted per project.