sn.dev

a vector of initial values for the centred parameters,
with <code>length(cp)=ncol(X)+2</code>

a matrix of explanatory variables. Missing values (<code>NA</code>s) are not allowed.

a vector contaning the observed variable.
Missing values (<code>NA</code>s) are not allowed.

logical value.
If <code>trace=TRUE</code>, details are printed. Default value is <code>F</code>.

trace

Computes twice the negative log-likelihood (the "deviance")
for regression models with errors having a skew-normal distribution.

regression

Functions for manipulating skew-normal and skew-t probability 
  distributions, and for fitting them to data, in the scalar and the 
  multivariate case.

sn.dev: Deviance for skew-normal distributions

Description

Usage

Arguments

Value

Details

See Also