{"comment":{"created_at":"2011-10-21T12:13:10Z","body":"Ralf Gommers wrote:\n> - you chose Nelder-Mead as default, probably BFGS or Levenberg-Marquardt are better choices.\n\nOr, there could be no default (as I planned to do for the constrained\nminimization interface).\n\nAbout Levenberg-Marquardt, are you referring to the algorithm behind\n`leastsq`? I was not so inclined to include it in the `minimize`\ninterface since it somehow serves a different purpose (in particular\nthe objective function must return a vector).\n\n> - I'm not yet comfortable deprecating the old functions. Because this will have a very large impact, it may be better to exercise these changes for a while until we're sure the API is good.\n\nNo problem, just pick what you think is appropriate.","updated_at":"2011-10-21T12:13:10Z","url":"https://api.github.com/repos/scipy/scipy/issues/comments/2480544","id":2480544,"user":{"gravatar_id":"d17caae325d3ad95f633e7c76c417d68","avatar_url":"https://secure.gravatar.com/avatar/d17caae325d3ad95f633e7c76c417d68?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png","url":"https://api.github.com/users/dlaxalde","id":1046124,"login":"dlaxalde"}},"action":"created","issue":{"number":94,"created_at":"2011-10-19T18:53:58Z","pull_request":{"diff_url":"https://github.com/scipy/scipy/pull/94.diff","patch_url":"https://github.com/scipy/scipy/pull/94.patch","html_url":"https://github.com/scipy/scipy/pull/94"},"body":"This is the first step of my [enhancement plan](https://github.com/dlaxalde/scipy/wiki/Improvements-to-optimize-package) for the optimization module. It concerns unconstrained minimization of multivariate functions.\r\n\r\nSummary of changes:\r\n- `minimize`: new wrapper called to replace `fmin`, `fmin_powell`, `fmin_bfgs`, `fmin_cg` and `fmin_ncg`;\r\n- `_minimize_{neldermead,powell,cg,ncg,bfgs}` functions: internal clones of the latter functions with standardized signature;\r\n- tests updated to cover both the new and old implementation;\r\n- deprecation of old functions.","comments":2,"title":"Enh: interface to unconstrained minimization algorithms for multivariate functions","updated_at":"2011-10-21T12:13:10Z","url":"https://api.github.com/repos/scipy/scipy/issues/94","id":1997197,"assignee":null,"milestone":null,"closed_at":null,"user":{"gravatar_id":"d17caae325d3ad95f633e7c76c417d68","avatar_url":"https://secure.gravatar.com/avatar/d17caae325d3ad95f633e7c76c417d68?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png","url":"https://api.github.com/users/dlaxalde","id":1046124,"login":"dlaxalde"},"html_url":"https://github.com/scipy/scipy/issues/94","labels":[],"state":"open"},"legacy":{"issue_id":1997197,"comment_id":2480544}}