lmomco (version 2.0.1)

are.parcau.valid: Are the Distribution Parameters Consistent with the Cauchy Distribution

Description

The distribution parameter object returned by functions of this package such as by vec2par are consistent with the corresponding distribution, otherwise a list would not have been returned. However, other functions (cdfcau and quacau) require consistent parameters to return the cumulative probability (nonexceedance), quantile, and L-moments of the distribution, respectively.

Usage

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

Arguments

para

A distribution parameter list returned by parcau or vec2par.

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

...

Additional arguments for the are.parCCC.valid call that is made internally.

Value

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

References

Elamir, E.A.H., and Seheult, A.H., 2003, Trimmed L-moments: Computational Statistics and Data Analysis, vol. 43, pp. 299--314.

Gilchrist, W.G., 2000, Statistical modeling with quantile functions: Chapman and Hall/CRC, Boca Raton, FL.

See Also

is.cau

Examples

para <- vec2par(c(12,12),type='cau')
if(are.parcau.valid(para)) Q <- quacau(0.5,para)