Yes, Barry, we are aware of this issue. It is caused by printing to console from FORTRAN in one of the optimization codes, ucminf. If we set trace=FALSE in "optimx", this problem goes away.
Ravi. ____________________________________________________________________ Ravi Varadhan, Ph.D. Assistant Professor, Division of Geriatric Medicine and Gerontology School of Medicine Johns Hopkins University Ph. (410) 502-2619 email: rvarad...@jhmi.edu ----- Original Message ----- From: Barry Rowlingson <b.rowling...@lancaster.ac.uk> Date: Thursday, September 9, 2010 4:13 am Subject: Re: [R] optimized value worse than starting Value To: Michael Bernsteiner <dethl...@hotmail.com> Cc: rvarad...@jhmi.edu, r-help@r-project.org > On Wed, Sep 8, 2010 at 6:26 PM, Michael Bernsteiner > <dethl...@hotmail.com> wrote: > > @Barry: Yes it is the Rosenbrock Function. I'm trying out some thing > I found > > here: > > > > @Ravi: Thanks for your help. I will have a closer look at the BB > package. Am > > I right, that the optimx package is ofline atm? (Windows) > > It looks like the Windows build of optimx failed the R CMD check when > running the examples: > > > > Barry ______________________________________________ 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.