4 Commits

Include renames

Author	SHA1	Message	Date
Erik Frojdh	5beabf1888	optimizations	2026-09-25 18:05:43 +02:00
Erik FröjdhandClaude Fable 5.1	86a773f6db	Add a built-in Levenberg-Marquardt minimizer selectable like Migrad and Fumili ... Bring the dependency-free Levenberg-Marquardt solver from dev/custom-fit in as Minimizer::LevenbergMarquardt next to Minuit2's Migrad (default) and Fumili, selected through the FitModel constructor, SetMinimizer() or the Python `minimizer` argument and property. - FitModel becomes plain data (limits, fixed flags, start values, minimizer settings) with index and limit validation. Minuit2 user parameters are built per pixel in src/FitMinuit2.cpp, the only translation unit that includes Minuit2 headers. - fit_3d fits through a per-thread PixelFitter so the LM path allocates nothing per pixel, and no minimizer allocates a per-pixel result array. - Fixed parameters and parameters ending on a limit report an error of 0 with every minimizer; user start values are applied before the validity check and clamped into the limits. - Minuit2's Fumili cannot converge once a two-sided limit is active, so such pixels are refitted with Migrad. The Minuit2 minimizers keep a wide two-sided range for one-sided limits because Minuit2's one-sided transform converges markedly slower. - The [fit] tests run every scenario through all three minimizers and check that they agree; the benchmark gains LM and data-cube cases. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>	2026-09-25 10:58:16 +02:00
Erik Fröjdh	b74c0afb97	initial implementation	2026-09-24 17:20:44 +02:00
Erik Fröjdh	4f6b69fba6	Removing deprecated use of lmfit (#344) ... Removed the lmfit based fitting and the old API for calling functions closes #296	2026-08-14 10:31:07 +02:00