fGarch (version 4052.93)

snormFit: Skew normal distribution parameter estimation

Description

Fits the parameters of the skew normal distribution.

Usage

snormFit(x, ...)

Value

a list with the following components:

par

the best set of parameters found;

objective

the value of objective corresponding to par;

convergence

an integer code. 0 indicates successful convergence;

message

a character string giving any additional information returned by the optimizer, or NULL. For details, see PORT documentation;

iterations

number of iterations performed;

evaluations

number of objective function and gradient function evaluations.

Arguments

x

a numeric vector of quantiles.

...

parameters passed to the optimization function nlm.

Author

Diethelm Wuertz for the Rmetrics R-port

References

Fernandez C., Steel M.F.J. (2000); On Bayesian Modelling of Fat Tails and Skewness, Preprint, 31 pages.

See Also

snormSlider (visualize), snorm, absMoments

Examples

set.seed(1953)
r <- rsnorm(n = 1000)

snormFit(r)