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Uno: R Interface to the 'Uno' Nonlinear Optimization Solver
Bindings to 'Uno' (Unifying Nonlinear Optimization), a C++ solver for smooth nonlinearly constrained optimization. 'Uno' unifies Lagrange-Newton methods, including sequential quadratic programming and interior-point methods, by decomposing them into interacting building blocks (constraint-relaxation, inequality-handling, Hessian, and globalization strategies) that can be freely combined, either through options or through presets that reproduce established solvers such as 'filterSQP' and 'IPOPT'. The framework is described in Vanaret and Leyffer (2026) <doi:10.1007/s12532-026-00310-9>.
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Package details |
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| Author | Balasubramanian Narasimhan [aut, cre, cph] (R package: R/, src/uno_binding.cpp, src/dmumps_shim.c, build scripts), Charlie Vanaret [aut, cph] (Bundled Uno C++ solver (inst/uno, MIT); designed and implemented Uno), Alexis Montoison [ctb, cph] (Uno C API (inst/uno/interfaces/C) and Fortran interface, MA86 interface), Joris Gillis [ctb, cph] (Uno dynamic loader (inst/uno/uno/tools/DynamicLoader.*)), David Kiessling [ctb, cph] (Uno funnel globalization method (inst/uno/uno/ingredients/glob/switching/funnel_methods)), Manuel Schaich [ctb, cph] (Uno MA27 interface (inst/uno/uno/ingredients/subproblem_solvers/MA27); compiled only when HSL is found), HiGHS development team [cph] (Bundled HiGHS LP/QP/MIP solver (MIT); see inst/COPYRIGHTS) |
| Maintainer | Balasubramanian Narasimhan <naras@stanford.edu> |
| License | MIT + file LICENSE |
| Version | 2.9.2-1 |
| URL | https://bnaras.github.io/Uno/ https://github.com/bnaras/Uno |
| Package repository | View on CRAN |
| Installation |
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