Hi R-users,

Recently, I use maxNR function to find maximizer. I have error appears as follows
Error in maxNRCompute(fn = fn, grad = grad, hess = hess, start = start,  : 
  NA in the initial gradient

My code is 

mu=2
s=1
n=300
library(maxLik)
set.seed(1004)
x<-rcauchy(n,mu,s)
loglik<-function(mu)
{
log(prod(dcauchy(x,mu,s)))
}
maxNR(loglik,start=median(x))$estimate 


Does anyone know how to solve this problem?

Thanks,

Kate


	[[alternative HTML version deleted]]

