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flexFitR

Flexible Non-Linear Least Square Model Fitting

v1.2.2 · Jan 27, 2026 · MIT + file LICENSE

Description

Provides tools for flexible non-linear least squares model fitting using general-purpose optimization techniques. The package supports a variety of optimization algorithms, including those provided by the 'optimx' package, making it suitable for handling complex non-linear models. Features include parallel processing support via the 'future' and 'foreach' packages, comprehensive model diagnostics, and visualization capabilities. Implements methods described in Nash and Varadhan (2011, <doi:10.18637/jss.v043.i09>).

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CRAN Check Status

14 OK
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r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-macos-arm64 OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK

Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Dependency Network

Dependencies Reverse dependencies agriutilities doFuture dplyr foreach future ggplot2 numDeriv optimx progressr rlang subplex tibble tidyr flexFitR

Version History

new 1.2.2 Mar 10, 2026
updated 1.2.2 ← 1.2.1 diff Jan 26, 2026
updated 1.2.1 ← 1.2.0 diff Nov 3, 2025
updated 1.2.0 ← 1.1.0 diff Apr 15, 2025
updated 1.1.0 ← 1.0.0 diff Feb 20, 2025
new 1.0.0 Jan 19, 2025