search for: maximalisation

Displaying 1 result from an estimated 1 matches for "maximalisation".

2009 Jul 19
1
trouble using optim for maximalisation of 2-parameter function
Hello, I am having trouble using "optim". I want to maximalise a function to its parameters [kind of like: univariate maximum likelihood estimation, but i wrote the likelihood function myself because of data issues ] When I try to optimize a function for only one parameter there is no problem: llik.expo<-function(x,lam){(length(x)*log(lam))-(length(x)*log(1-exp(-1*lam*