That is an intrinsic part of nonlinear optimization. Choose your starting point wisely. --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity.
stats12 <ska...@gmail.com> wrote: >Hi, > >Thank you for your comment. I worked on the code again and was able to >make >it work. The only problem I am having right now is that nlm depends on >the >initial value. > >When the initial value is 1, I get the following estimates >0.1230414 19.6271029 > >when it is 2, I get the following >29.46874 20.01679 > > > >d<-matrix(c(1,1,0,0,0,0,0,0,2,1,0,0,1,1,0,1,2,2,1,0),nrow=10,ncol=2) >h<-matrix(runif(20,0,1),10) >delta<-matrix(c(2,1,0,1,0,1,0,0,2,1,0,0,1,1,1,1,0,2,1,0),nrow=10,ncol=2) > > >out<-vector("numeric",length(1:2)) >integ<-vector("numeric",length(1:10)) > >for (k in 1:2){ >ll<-function(p){ >cmh<-delta[,k]*(h[,k]*log(0.5))+p*log(gamma(1+1/p)) >for(s in 1:10){ >integrand<-function(x) >x^d[s,k]*exp(-x*gamma(1+1/p))^p*p*x^(p-1)*exp(-x*h[s,k]) >integ<-integrate(integrand,0,Inf)$value >return(integ) >} > >lik<-sum(cmh+log(integ)) >-lik >} >initial<-c(1) >t<-nlm(ll,initial) >out[k]<-t$estimate >} > >est<-as.vector(out) > > > > > > > > >-- >View this message in context: >http://r.789695.n4.nabble.com/Error-in-integrate-integrand-0-Inf-non-finite-function-value-tp4646868p4646896.html >Sent from the R help mailing list archive at Nabble.com. > >______________________________________________ >R-help@r-project.org mailing list >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. ______________________________________________ R-help@r-project.org mailing list 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.