NEWS

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dfoptim 2020.10-1 (2020-10-20)

• Added a new derivative free optimizer called MADS: mesh-adaptive direct solver (contributed by Vincent Bechard of Montreal University)
• In Nelder-Mead, changed the ‘sgrad’ computation back to the original cross-product rather than the (correct) inverse, since this seems to provide better performance

dfoptim 2018.2-1 (2018-04-02)

• Set oshrink=1 to enable "restarting" of Nelder-Mead due to stagnation (thanks to Simon Wessing)

dfoptim 2017.12-1 (2017-12-20)

• fixed a bug in the code, which impacts the "restarting" of Nelder-Mead due to stagnation (thanks to Simon Wessing)

dfoptim 2016.7-1 (2016-07-10)

• Used a slightly modified code for hjk() and hjkb()

dfoptim 2011.8-1 (2011-08-12)

• Bounds constrained Hooke-Jeeves hjkb()

dfoptim 2011.7-2 (2011-07-30)

• Bounds constrained Nelder-Mead nmkb().

dfoptim 2011.7-1 (2011-07-25)

• Hooke-Jeeves minimization routine hjk().

dfoptim 2011.5-1 (2011-05-03)

• Fixed minor bug in the re-definition of objective function inside for maximization. Initial version
• Nelder-Mead minimization routine nmk().