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Schematizing the variance as a moment of inertia

Publié le 6 Octobre 2013 par Stéphane Laurent dans R, Statistics

In order to make a presentation, I was wondering how to display the variance of a distribution, or the variance, of a sample on a graphic. Finally, I've found this solution: What is this “ellipse” with an arrow ? This is a picture commonly used in classical...

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