lmomco (version 2.0.1)

are.parrevgum.valid: Are the Distribution Parameters Consistent with the Reverse Gumbel Distribution

Description

The distribution parameter object returned by functions of this package such as by parrevgum are consistent with the corresponding distribution, otherwise a list would not have been returned. However, other functions (cdfrevgum, quarevgum, and lmomrevgum require consistent parameters to return the cumulative probability (nonexceedance), quantile, and L-moments of the distribution, respectively. These functions internally use the are.parrevgum.valid function.

Usage

are.parrevgum.valid(para,nowarn=FALSE)

Arguments

para

A distribution parameter list returned by parrevgum.

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

• TRUE
  If the parameters are revgum consistent.
• FALSE
  If the parameters are not revgum consistent.

References

Hosking, J.R.M., 1995, The use of L-moments in the analysis of censored data, in Recent Advances in Life-Testing and Reliability, edited by N. Balakrishnan, chapter 29, CRC Press, Boca Raton, Fla., pp. 546--560.

See Also

is.revgum

Examples

para <- vec2par(c(.9252, .1636, .7),type='revgum')
if(are.parrevgum.valid(para)) Q <- quarevgum(0.5,para)