------------------------------------------------------------------------------ dfoptim NEWS ------------------------------------------------------------------------------ Changes in version 2020.10-1 (2020-10-19) o Added a new derivative free optimizer called MADS: mesh-adaptive direct solver (contributed by Vincent Bechard of Montreal University) o 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 Changes in version 2018.2-1 (2018-4-01) o Set oshrink=1 to enable "restarting" of Nelder-Mead due to stagnation (thanks to Simon Wessing) Changes in version 2017.12-1 (2017-12-20) o fixed a bug in the code, which impacts the "restarting" of Nelder-Mead due to stagnation (thanks to Simon Wessing) Changes in version 2016.7-1 (2011-07-08) o Used a slightly modified code for hjk() and hjkb() Changes in version 2011.8-1 (2011-08-12) o Bounds constrained Hooke-Jeeves hjkb() Changes in version 2011.7-2 (2011-07-26) o Bounds constrained Nelder-Mead nmkb(). Changes in version 2011.7-1 o Hooke-Jeeves minimization routine hjk(). Changes in version 2011.5-1 o Fixed minor bug in the re-definition of objective function inside for maximization. Initial version o Nelder-Mead minimization routine nmk().