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Articles avec #statistics catégorie

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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Sample size determination for a Gaussian mean

Publié le 13 Avril 2013 par Stéphane Laurent dans R, Mathematics, Statistics

Sample size determination for a mean Sample size determination for a mean This article explains the methodology implemented in the Shiny application availbale at http://glimmer.rstudio.com/stla/samplesize_mean/ Statement of the problem Consider a preliminary...

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