params<-c(4,5)
pgfDneymantypeb(.5,params)
## The function is currently defined as
pgfDneymantypeb <- function(s,params) {
require(hypergeo)
k<-s[abs(s)>1]
if (length(k)>0)
warning("At least one element of the vector s are out of interval [-1,1]")
if (length(params)<2)
stop("At least one value in params is missing")
if (length(params)>2)
stop("The length of params is 2")
theta<-params[1]
lambda<-params[2]
if (theta<=0)
stop ("Parameter theta must be positive")
if (lambda<=0)
stop ("Parameter lambda must be positive")
theta*lambda/2*genhypergeo(2,3,theta*(s-1))*pgfneymantypeb(s,params)
}
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