On 2006-04-18 17:30-0400 Martin Jansche wrote:
Meanwhile, you could look into other free optimizers, including the optimization code in the R project (http://www.r-project.org/, which supposedly uses L-BFGS-B as well) or the TAO toolkit (http://www-unix.mcs.anl.gov/tao/).
Thanks, Martin, for those suggestions. L-BFGS-B is not robust enough for my free-energy minimization needs. (I suspect there are just too many complications/transformations in that code so that it is not resilient in cases where numerical significance loss is occurring.) Also, I am a little leery of TAO since they want me to sign up for an e-mail list before I can download it. Also, I cannot find out anything about the TAO license. There is some discussion of the "TAO" license on Debian-legal, but that refers to different software (a Corba implementation). It looks pretty straightforward to implement the Fletcher line search algorithm I have referred to before in this thread so I will concentrate on that for now. Alan __________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); PLplot scientific plotting software package (plplot.org); the Yorick front-end to PLplot (yplot.sf.net); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ _______________________________________________ Help-gsl mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-gsl
