The Two-Piece Normal, Binormal, or Double Gaussian Distribution: Its Origin and Rediscoveries
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Abstract (arXiv)
This paper traces the history of the two-piece normal distribution from its origin in the posthumous Kollektivmasslehre (1897) of Gustav Theodor Fechner to its rediscoveries and generalisations. The denial of Fechner's originality by Karl Pearson, reiterated a century later by Oscar Sheynin, is shown to be without foundation.
Key facts. Cited by 1 paper in the map (data through 14 Oct 2026). First posted on arXiv 20 May 2014.
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