R Observatory: Metrics for sqp version 0.5

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

This package was removed from CRAN on 2021-12-20. Its history is shown below.

Reason: email to the maintainer is undeliverable

Details below reflect version 0.5, its last release before removal.

sqp

0.5Package record

(Sequential) Quadratic Programming

0packages depend

–downloads / year

–test coverage

–flavors OK

Overview

About

Maintained by Simon LenauCRAN page ↗

Solving procedures for quadratic programming with optional equality and inequality constraints, which can be used for by sequential quadratic programming (SQP). Similar to Newton-Raphson methods in the unconstrained case, sequential quadratic programming solves non-linear constrained optimization problems by iteratively solving linear approximations of the optimality conditions of such a problem (cf. Powell (1978) doi:10.1007/BFb0067703; Nocedal and Wright (1999, ISBN: 978-0-387-98793-4)). The Hessian matrix in this strategy is commonly approximated by the BFGS method in its damped modification proposed by Powell (1978) doi:10.1007/BFb0067703. All methods are implemented in C++ as header-only library, such that it is easy to use in other packages.

Install

R (source archive)

url <- "https://cran.r-project.org/src/contrib/Archive/sqp/sqp_0.5.tar.gz"
pkgFile <- "sqp_0.5.tar.gz"
download.file(url, pkgFile)
install.packages(pkgFile, type = "source", repos = NULL)

This package is no longer on CRAN, so install.packages() cannot fetch it by name. This downloads the last archived source (0.5) and builds it locally. Install its dependencies first, and note that building from source needs the usual compiler toolchain.

Health

CRAN checks

CRAN check results are not tracked yet.

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.5

READMENoVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 2
Examples that run: 100%1 run in a plain check
Exported functions with examples: 50%
Documented parameters: not tracked
Return-value docs: not tracked
Help pages citing references: 100% with a bibliography file

How these are measured

Downloads

sqp Releases R versions

Daily download trend is not available in this view yet.

Compare downloads with other packages →

Also on2 autocran

How downloads are counted

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (3)

RcppMatrixRdpack

LinkingTo (3)

Rcpp RcppArmadillo RcppEigen

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

–indirect (not tracked)

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)

Simon Lenau

Contributor

Maintainer since 0.5 (2020)

Releases (1)

R
R 4.2.0 released · 2022-04-22
archivedRemoved from CRAN
2021-12-20
email to the maintainer is undeliverable
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.5
record
2020-03-31
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2020-03-31
Total releases: 1 / 6 yrs
License: GPL-3 OSI

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("sqp")

Format

Lenau, S. (n.d.). sqp: (Sequential) Quadratic Programming (Version 0.5) [Computer software]. Retrieved October 25, 2026, from https://CRAN.R-project.org/package=sqp

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for sqp version 0.5 [Data set]. HJJB, LLC. Data release v2026-10-24. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-24, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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