sn.params: Skew-Normal parameter computation

In swfscMisc: Miscellaneous Functions for Southwest Fisheries Science Center

Skew-Normal parameter computation

Description

Compute parameters and moments of skew normal distribution.

Usage

sn.location(mode, scale, shape)

sn.mean(dp)

sn.mode(dp)

sn.variance(scale, shape)

sn.skewness(shape)

sn.delta(shape)

sn.m0(shape)

Arguments

mode	mode of skew normal distribution.
scale	skew normal scale parameter.
shape	skew normal shape parameter.
dp	3 element vector of (in order) location, scale, and shape parameters.

Value

sn.location	location parameter computed from mode, scale, and shape.
sn.mean	mean of the skew normal distribution.
sn.mode	mode of the skew normal distribution.
sn.variance	variance of the skew normal distribution.
sn.skewness	skewness of the skew normal distribution.
sn.delta	value used in other moment computations.
sn.m0	value used in mode computation.

Author(s)

Eric Archer [e-mail]

References

https://en.wikipedia.org/wiki/Skew_normal_distribution

See Also

sn package by Adelchi Azzalini for skew normal PDF and CDF functions.
Azzalini, A. with the collaboration of Capitanio, A. (2014). The Skew-Normal and Related Families. Cambridge University Press, IMS Monographs series.

swfscMisc documentation built on Sept. 8, 2023, 5:55 p.m.