I am analyzing animal movement pattern using levy flight pattern and want to fit power function to observed data and estimate exponent using Maximum Likelihood Estimation.
I am using lff<-function(mu){1-1/mean(log(x))} library(stats4) mle(lff, start = list(mu = 1)) where x is the observed data. I am getting following error Error in solve.default(oout$hessian) : Lapack routine dgesv: system is exactly singular: U[1,1] = 0 This is first time i am writing function and I am as good at algebra as brick is good at flying. Thank you in advance for your help. -- *Avadhoot D. Velankar* [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.