Skew Student-t Distribution Parameter Estimation
Function to fit the parameters of the Student-t distribution.
sstdFit(x, ...)
x |
a numeric vector of quantiles. |
... |
parameters parsed to the optimization function |
sstdFit
returns a list with the following components:
par |
The best set of parameters found. |
objective |
The value of objective corresponding to |
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. |
Diethelm Wuertz for the Rmetrics R-port.
Fernandez C., Steel M.F.J. (2000); On Bayesian Modelling of Fat Tails and Skewness, Preprint, 31 pages.
## sstd - set.seed(1953) r = rsstd(n = 1000) ## sstdFit - sstdFit(r)
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