are.pargum.valid: Are the Distribution Parameters Consistent with the Gumbel Distribution
Description
The distribution parameter object returned by functions of this package such as by
pargum are consistent with the corresponding distribution,
otherwise a list would not have been returned. However, other
functions (cdfgum, quagum, and
lmomgum require consistent parameters to return the cumulative
probability (nonexceedance), quantile, and L-moments of the distribution,
respectively. These functions internally use the are.pargum.valid
function. The FORTRAN source code of Hosking provides the basis
for the function.
Usage
are.pargum.valid(para,nowarn=FALSE)
Arguments
para
A distribution parameter list returned by pargum.
nowarn
A logical switch on warning surpression. If TRUE then options(warn=-1) is made and restored on return. This switch is to permit calls in which warnings are not desired as the user knows how to handle the returned value---say in a
Value
TRUEIf the parameters are gum consistent.
FALSEIf the parameters are not gum consistent.
References
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.