freq.curve.gum {lmomco} | R Documentation |
This function returns the quantiles of the Gumbel 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.
freq.curve.gum(fs, para)
fs |
Vector of nonexceedance probabilities. |
para |
Parameters of the distribution as from pargum . |
A vector of quantiles for the distribution.
W.H. Asquith
Hosking, J.R.M., 1990, L-moments—Analysis and estimation of distributions using linear combinations of order statistics: Journal of the Royal Statistical Society, Series B, vol. 52, p. 105–124.
Hosking, J.R.M., 1996, FORTRAN routines for use with the method of L-moments: Version 3, IBM Research Report RC20525, T.J. Watson Research Center, Yorktown Heights, New York.
Hosking, J.R.M. and Wallis, J.R., 1997, Regional frequency analysis—An approach based on L-moments: Cambridge University Press.
fs <- nonexceeds() lmr <- lmom.ub(c(123,34,4,654,37,78)) para <- pargum(lmr) plot(fs,freq.curve.gum(fs,para))