Package: gslnls
Type: Package
Title: GSL Multi-Start Nonlinear Least-Squares Fitting
Version: 1.4.2
Date: 2025-09-27
Authors@R: person("Joris", "Chau", email = "joris.chau@openanalytics.eu", role = c("aut", "cre"))
Description: An R interface to weighted nonlinear least-squares optimization with the GNU Scientific Library (GSL), see M. Galassi et al. (2009, ISBN:0954612078). The available trust region methods include the Levenberg-Marquardt algorithm with and without geodesic acceleration, the Steihaug-Toint conjugate gradient algorithm for large systems and several variants of Powell's dogleg algorithm. Multi-start optimization based on quasi-random samples is implemented using a modified version of the algorithm in Hickernell and Yuan (1997, OR Transactions). Robust nonlinear regression can be performed using various robust loss functions, in which case the optimization problem is solved by iterative reweighted least squares (IRLS). Bindings are provided to tune a number of parameters affecting the low-level aspects of the trust region algorithms. The interface mimics R's nls() function and returns model objects inheriting from the same class.
BugReports: https://github.com/JorisChau/gslnls/issues
URL: https://github.com/JorisChau/gslnls
Depends: R (>= 3.5)
Imports: stats, Matrix
Encoding: UTF-8
Language: en-US
License: LGPL-3
SystemRequirements: GSL (>= 2.3)
Biarch: true
RoxygenNote: 7.3.2
NeedsCompilation: yes
Packaged: 2025-09-28 07:47:47 UTC; jchau
Author: Joris Chau [aut, cre]
Maintainer: Joris Chau <joris.chau@openanalytics.eu>
Repository: CRAN
Date/Publication: 2025-09-28 12:30:02 UTC
Built: R 4.6.0; aarch64-apple-darwin23; 2026-04-26 00:15:09 UTC; unix
Archs: gslnls.so.dSYM
