[R] optimized value worse than starting Value

Barry Rowlingson b.rowlingson at lancaster.ac.uk
Thu Sep 9 10:13:23 CEST 2010


On Wed, Sep 8, 2010 at 6:26 PM, Michael Bernsteiner
<dethlef1 at hotmail.com> wrote:
> @Barry: Yes it is the Rosenbrock Function. I'm trying out some thing I found
> here: http://math.fullerton.edu/mathews/n2003/PowellMethodMod.html
>
> @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:

http://www.r-project.org/nosvn/R.check/r-devel-windows-ix86+x86_64/optimx-00check.html

Barry



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