# The Two-Piece Normal, Binormal, or Double Gaussian Distribution: Its Origin and Rediscoveries

arXiv: https://arxiv.org/abs/1405.4995 · HTML: https://mlsanity.com/paper/1405.4995/

## Key facts

- Cited by 1 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 20 May 2014.

## Built on by (most cited first, 1 of 1)

- [Dual Accuracy-Quality-Driven Neural Network for Prediction Interval Generation](https://mlsanity.com/paper/2212.06370/) (2022)

## 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.