freq.curve.gld {lmomco}R Documentation

Frequency Curve of the Generalized Lambda Distribution

Description

This function returns the quantiles of the Generalized Lambda distribution given a vector of nonexceedance probabilities and the parameters of the distribution. Because in magnitude and frequency analysis the frequency curve is typically the objective, this is a convenient function to increase analysis efficiency.

Usage

freq.curve.gld(fs, para)

Arguments

fs Vector of nonexceedance probabilities.
para Parameters of the distribution as from vec2par.

Value

A vector of quantiles for the distribution.

Note

This function assumes that the parameters are already confirmed as valid for the GLD distribution. A check is not made with successive calls to quagld; this is done primarly for speed purposes. Therefore, when quagld is called the paracheck=FALSE options to that function is made.

Author(s)

W.H. Asquith

References

Karian, Z.A., and Dudewicz, E.J., 2000, Fitting statistical distributions—The generalized lambda distribution and generalized bootstrap methods: CRC Press, Boca Raton, FL, 438 p.

See Also

quagld, nonexceeds

Examples

  fs <- nonexceeds()
  para <- vec2par(c(123,34,4,3),type="gld")
  plot(fs,freq.curve.gld(fs,para))

[Package lmomco version 0.7 Index]