sn.dev {sn} | R Documentation |
Computes twice the negative log-likelihood (the "deviance") for regression models with errors having a skew-normal distribution.
sn.dev(cp, X, y, trace=F)
cp |
a vector of initial values for the centred parameters,
with length(cp)=ncol(X)+2
|
X |
a matrix of explanatory variables. Missing values (NA s) are not allowed.
|
y |
a vector contaning the observed variable.
Missing values (NA s) are not allowed.
|
trace |
logical value.
If trace=T , details are printed. Default value is F .
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This is the objective function of sn.mle
, whose documentation
gives additional details.
a numeric value