Package: lbfgsb3c Type: Package Title: Limited Memory BFGS Minimizer with Bounds on Parameters with optim() 'C' Interface Version: 2026-3.5 Authors@R: c(person(given = c("Matthew", "L"), family = "Fidler", role = c("aut", "cre"), email = "matthew.fidler@gmail.com", comment=c(ORCID="0000-0001-8538-6691")), person(given = c("John", "C"), family = "Nash", role = c("aut"), email = "nashjc@uottawa.ca"), person(given = "Ciyou", family = "Zhu", role = "aut"), person(given = "Richard", family = "Byrd", role = "aut"), person(given = "Jorge", family = "Nocedal", role = "aut"), person(given = c("Jose", "Luis"), family = "Morales", role = "aut")) Maintainer: Matthew L Fidler Description: Interfacing to Nocedal et al. L-BFGS-B.3.0 (See ) limited memory BFGS minimizer with bounds on parameters. This is a fork of 'lbfgsb3'. This registers a 'R' compatible 'C' interface to L-BFGS-B.3.0 that uses the same function types and optimization as the optim() function (see writing 'R' extensions and source for details). This package also adds more stopping criteria as well as allowing the adjustment of more tolerances. License: GPL-2 Depends: R (>= 3.6) Imports: Rcpp (>= 0.12.3), numDeriv, methods Suggests: knitr, microbenchmark, optimx, RcppArmadillo, rmarkdown, testthat (>= 3.0.0), adagio LinkingTo: Rcpp (>= 0.12.3), RcppArmadillo Encoding: UTF-8 VignetteBuilder: knitr NeedsCompilation: yes URL: https://nlmixr2.github.io/lbfgsb3c/, https://github.com/nlmixr2/lbfgsb3c BugReports: https://github.com/nlmixr2/lbfgsb3c/issues Config/testthat/edition: 3 Config/roxygen2/version: 8.1.0 Repository: https://nlmixr2.r-universe.dev Date/Publication: 2026-10-06 14:32:03 UTC RemoteUrl: https://github.com/nlmixr2/lbfgsb3c RemoteRef: HEAD RemoteSha: 26038804edf76139f52f73a7d06fa3286f0e42e3 Packaged: 2026-10-07 08:34:02 UTC; root Author: Matthew L Fidler [aut, cre] (ORCID: ), John C Nash [aut], Ciyou Zhu [aut], Richard Byrd [aut], Jorge Nocedal [aut], Jose Luis Morales [aut]