sn: The Skew-Normal and Related Distributions Such as the Skew-t and the SUN

Build and manipulate probability distributions of the skew-normal family and some related ones, notably the skew-t and the SUN families. For the skew-normal and the skew-t distributions, statistical methods are provided for data fitting and model diagnostics, in the univariate and the multivariate case.

Package details

AuthorAdelchi Azzalini [aut, cre] (ORCID: <https://orcid.org/0000-0002-7583-1269>)
MaintainerAdelchi Azzalini <adelchi.azzalini@unipd.it>
LicenseGPL-2 | GPL-3
Version2.1.2
URL http://azzalini.stat.unipd.it/SN/
Package repositoryView on CRAN
Installation Install the latest version of this package by entering the following in R:
install.packages("sn")

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sn documentation built on Jan. 25, 2026, 9:07 a.m.