summary.SUNdistr function

Summary of a SUN distribution object

Summary of a SUN distribution object

Produce a summary of an object of class "SUNdistr" UTF-8

## S4 method for signature 'SUNdistr' summary(object, ...)

Arguments

  • object: an object of class "SUNdistr".
  • ...: optional arguments passed to mom.mtruncnorm for the regulation of its working.qq

Returns

An S4-object with the following slots:

  • dp: the parameters of the distrbution, a list

  • name: the name of the distribution, a character string

  • compNames: the names of the components, a character vector

  • HcompNames: the names of the hidden components, a character vector

  • mean: the mean value, a vector

  • var.cov: the variance-covariance matrix

  • gamma1: the marginal indices of asymmetry, a vector

  • cum3: the third order cumulants, a three-dimensional array

  • mardia: the Mardia's measures of multivariate asymmetry and skewness, a vector of length two

Author(s)

Adelchi Azzalini

See Also

makeSUNdistr for building a SUN distribution object

methods mean and vcov

for computing the mean vector and the variance matrix of SUNdistr-class objects

References

Arellano-Valle, R. B. and Azzalini, A. (2021). Some properties of the unified skew-normal distribution. Statistical Papers, tools:::Rd_expr_doi("https://doi.org/10.1007/s00362-021-01235-2")

and arXiv:2011.06316

Azzalini, A. with the collaboration of Capitanio, A. (2014). The Skew-Normal and Related Families. Cambridge University Press, IMS Monographs series.

Examples

Omega <- matrix(c(5, 1, 1, 6), 2, 2) Delta <- matrix(c(0.30, 0.50, 0.50, 0.85), 2, 2, byrow=TRUE) Gamma <- matrix(c(1, 0.18, 0.18, 1), 2, 2) tau <- c(0.4, -0.8) dp2 <- list(x=c(1, 0), Omega=Omega, Delta=Delta, tau=tau, Gamma=Gamma) sun2 <- makeSUNdistr(dp=dp2, name="SUN2", compNames=c("u", "v")) s <- summary(sun2)