Nai-Wei Chen wrote: > > I just know how to solve an eaquation by using optim() or nlm(). But, now, > I have three nonlinear equations, > how could we use optim() or nlm() to solve a system of nonlinear > equations in R? Thank you so much. >
You don't use general optimize routines to solve a set of nonlinear equations. It is not efficient and it is not recommended. There are two packages: nleqslv and BB, that you can use to solve non linear equation systems. Both are available on CRAN. /B -- View this message in context: http://n4.nabble.com/how-to-use-optim-or-nlm-to-solve-three-nonlinear-equations-tp1459716p1459803.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.
