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optextras  

Tools to Support Optimization Possibly with Bounds and Masks
View on CRAN: Click here


Download and install optextras package within the R console
Install from CRAN:
install.packages("optextras")

Install from Github:
library("remotes")
install_github("cran/optextras")

Install by package version:
library("remotes")
install_version("optextras", "2019-12.4")



Attach the package and use:
library("optextras")
Maintained by
John C Nash
[Scholar Profile | Author Map]
First Published: 2013-11-08
Latest Update: 2019-12-20
Description:
Tools to assist in safely applying user generated objective and derivative function to optimization programs. These are primarily function minimization methods with at most bounds and masks on the parameters. Provides a way to check the basic computation of objective functions that the user provides, along with proposed gradient and Hessian functions, as well as to wrap such functions to avoid failures when inadmissible parameters are provided. Check bounds and masks. Check scaling or optimality conditions. Perform an axial search to seek lower points on the objective function surface. Includes forward, central and backward gradient approximation codes.
How to cite:
John C Nash (2013). optextras: Tools to Support Optimization Possibly with Bounds and Masks. R package version 2019-12.4, https://cran.r-project.org/web/packages/optextras. Accessed 07 Apr. 2025.
Previous versions and publish date:
2013-10.27 (2013-11-08 22:41), 2013-10.28 (2014-12-05 23:51), 2016-8.8 (2016-08-08 17:08)
Other packages that cited optextras R package
View optextras citation profile
Other R packages that optextras depends, imports, suggests or enhances
Complete documentation for optextras
Functions, R codes and Examples using the optextras R package
Some associated functions: axsearch . bmchk . bmstep . ctrldefault . fnchk . gHgen . gHgenb . grback . grcentral . grchk . grfwd . grnd . hesschk . kktchk . optextras-package . scalechk . 
Some associated R codes: axsearch.R . bmchk.R . bmstep.R . ctrldefault.R . fnchk.R . gHgen.R . gHgenb.R . grback.R . grcentral.R . grchk.R . grfwd.R . grnd.R . hesschk.R . kktchk.R . scalechk.R . zzz.R .  Full optextras package functions and examples
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