Hi guys,
I'm trying to use the the integral function to estimate the area under a
PDF and a crossing curve. first I stated the function with several vectors
in it:
fn=function(a,b,F,mu,alpha,xi)
{
x<-vector()
fs<-function(x)
{
c <- (mu+(alpha*(1-(1-F)^xi)/xi))
tmp <- (1 + (xi * (x - mu))/alpha)
((as.numeric(tmp > 0) * (tmp^(-1/xi - 1) *
exp(-tmp^(-1/xi))))/alpha)*((a*(x-c)^0.5)+(b*(x-c)))
}
return(fs)}
#then I use the integral function
xn<-fn(1,2,0.98,824,300,-0.0098)
horror<-integrate(xn,lower=2021,upper=Inf)
what I got is error message
#Error in integrate(xn, lower = 2021, upper = Inf) :
# non-finite function value
can somebody help me by giving some light how to solve this problem? many
thanks
Best wishes,
Al
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