are.parln3.valid: Are the Distribution Parameters Consistent with the 3-Parameter Log-Normal Distribution
Description
Is the distribution parameter object consistent with the corresponding distribution? The distribution functions (cdfln3, pdfln3, qualn3, and lmomln3) require consistent parameters to return the cumulative probability (nonexceedance), density, quantile, and L-moments of the distribution, respectively. These functions internally use the are.parln3.valid function.
Usage
are.parln3.valid(para, nowarn=FALSE)
Value
TRUE
If the parameters are ln3 consistent.
FALSE
If the parameters are not ln3 consistent.
Arguments
para
A distribution parameter list returned by parln3 or vec2par.
nowarn
A logical switch on warning suppression. 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 an optimization algorithm.
Author
W.H. Asquith
References
Asquith, W.H., 2011, Distributional analysis with L-moment statistics using the R environment for statistical computing: Createspace Independent Publishing Platform, ISBN 978--146350841--8.