"are.parst3.valid" <-
function(para,nowarn=FALSE) {
if(! is.st3(para)) return(FALSE)
if(any(is.na(para$para))) return(FALSE)
U <- para$para[1]
A <- para$para[2]
N <- para$para[3]
op <- options()
GO <- TRUE
if(nowarn == TRUE) options(warn=-1)
if(A <= 0) {
warning("Parameter Alpha is not > 0, invalid")
GO <- FALSE
}
if(N <= 1) {
warning("Parameter Nu is not > 1, invalid")
GO <- FALSE
}
options(op)
if(GO) return(TRUE)
return(FALSE)
}
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