Re: [OctDev] changes in optim

[Etienne G. <et...@cs...>]

  Hi all,

On Thu, May 20, 2004 at 02:36:50PM +0200, Michael Creel wrote:
# Hello all,
# I have made some significant changes in the ./main/optim directory.
# 
# bfgs.m and bs_gradient.m have been replaced with bfgsmin.cc and 
# numgradient.cc. The first change introduces interface incompatibilities, but 
# the second has a common interface.
#
# There will be some errors in functions that call bfgs.m until the new 
# interface and function name are adopted.

I would have prefered to have bfgs and bfgsmin coexist for some time,
i.e. until 'minimize' uses 'bfgsmin' and a warning message

 'bfgs is obsolete and will be removed from future octave-forge releases'

has amply warned users of 'bfgs' to do the switch. Is it still time to
put back bfgs and dependencies?

  Just my 2c,

  Etienne

# There are also two new minimization routines: lbfgsmin.cc and samin.cc, that 
# implement limited memory BFGS, and Simulated Annealing.
# 
# There is also a celleval.cc, which is like leval.cc, but for cells. Perhaps 
# this might be useful in contexts other that optimization.
# 
# The motivation for the change is the greater speed and reliability of the new 
# routines. I can post documentation if anyone is interested.
# 
# I'm sorry for any inconveniences adapting interfaces might cause. I have kept 
# snapshots of the replaced functions if anyone needs them.
# 
# Regards, Michael
# 
# 
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-- 
Etienne Grossmann ------ http://www.cs.uky.edu/~etienne