quakap {lmomco} | R Documentation |
Quantile Function of the Kappa Distribution
Description
This function computes the quantiles of the Kappa distribution given parameters (,
,
, and
) computed by
parkap
. The quantile function is
where is the quantile for nonexceedance probability
,
is a location parameter,
is a scale parameter,
is a shape parameter, and
is another shape parameter.
Usage
quakap(f, para, paracheck=TRUE)
Arguments
f |
Nonexceedance probability ( |
para |
|
paracheck |
A logical controlling whether the parameters are checked for validity. Overriding of this check might be extremely important and needed for use of the quantile function in the context of TL-moments with nonzero trimming. |
Value
Quantile value for nonexceedance probability .
Author(s)
W.H. Asquith
References
Hosking, J.R.M., 1994, The four-parameter kappa distribution: IBM Journal of Reserach and Development, v. 38, no. 3, pp. 251–258.
Hosking, J.R.M., and Wallis, J.R., 1997, Regional frequency analysis—An approach based on L-moments: Cambridge University Press.
See Also
cdfkap
, pdfkap
, lmomkap
, parkap
Examples
lmr <- lmoms(c(123,34,4,654,37,78,21,32,231,23))
quakap(0.5,parkap(lmr))