I did it like above but got an error message. > estimate<- optim(init.par,Linn,gr=NULL,method= "L-BFGS-B", > hessian=FALSE,control = > list(trace=1),lower=c(0,-Inf,Inf,Inf),upper=c(1,Inf,Inf,Inf)) Error in solve.default(sig[, , 1]) : system is computationally singular: reciprocal condition number = 0
"how to derive constrain for only 1 variable" Regards, Ser -- View this message in context: http://r.789695.n4.nabble.com/Optim-package-restriction-tp4418379p4418865.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.
