Smoothed radar chart

tidyverse
1

Hi All,

Does anyone have an idea of how to create such chart, i.e with proper smoothing between points with ggplot ? (Theme is not part of the question)

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Already found some interesting proposals but nothing that allows important variations between 3 points: For a low value in between two high ones, a clear inflexion is visible resulting in peaks.

I guess a smooth extrapolation between points (polynomial fit ?) would do the trick but did not managed to force passage by exact given values while doing this...

Any help would be appreciated.

Regards

2

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