R Observatory: Metrics for ssym version 1.5.8

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

ssym

1.5.8

Fitting Semi-Parametric log-Symmetric Regression Models

2packages depend

3Kdownloads / year

–test coverage

11/13checks pass

Overview

About

Maintained by Luis Hernando VanegasFirst published 2014-04-0213 releasesCRAN page ↗

Set of tools to fit a semi-parametric regression model suitable for analysis of data sets in which the response variable is continuous, strictly positive, asymmetric and possibly, censored. Under this setup, both the median and the skewness of the response variable distribution are explicitly modeled by using semi-parametric functions, whose non-parametric components may be approximated by natural cubic splines or P-splines. Supported distributions for the model error include log-normal, log-Student-t, log-power-exponential, log-hyperbolic, log-contaminated-normal, log-slash, Birnbaum-Saunders and Birnbaum-Saunders-t distributions.

Install

R (CRAN)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("ssym", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-ssym

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-ssym

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-ssym

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

2NOTE11OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 4.4 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

11

Dependencies · direct

Check history

NOTE2026-06-09
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
WARNING2026-06-08
11 OK · 1 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 67%
References docs: 56%

Downloads

3K

CRAN downloads in the past year

Rank #11,823 · ~8/day · ~250/mo

Releases R versions

Daily download trend is not available in this view yet.

23030 days

83790 days

3K1 year

Compare downloads with other packages →

Also on98 r2u17 autocran52 c2d4u

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Depends (5)

GIGrvg numDeriv normalp Formulasurvival

Imports (6)

statsgrDevicessandwichgraphicsmethodsutils

LinkingTo (0)

none

Suggests (4)

NISTnls gam snMASS

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

0indirect

PartCensReg SLRMss

Code & Tests

Datasets

People & History

People (0)

Author records are not tracked yet for this package.

Listed in earlier versions (2)

Gilberto A. Paula

no longer listed · 1.0 to 1.5.8

Luis Hernando Vanegas

no longer listed · 1.0 to 1.5.8

Package Timeline

13 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
1.5.8Latest
2023-04-22 · current release · diff ↗
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
1.5.7
2016-10-16 · diff ↗
1.5.6
2016-07-22 · diff ↗
R
R 3.3.0 released · 2016-05-03
1.5.5
2016-03-07 · diff ↗
1.5.4
2015-10-22 · diff ↗

Show 11 earlier events

1.5.3
2015-06-04 · diff ↗
R
R 3.2.0 released · 2015-04-16
1.5.2
2015-01-08 · diff ↗
1.5.1
2014-10-07 · diff ↗
1.5
2014-08-21 · diff ↗
1.3
2014-05-07 · diff ↗
1.2
2014-04-16 · diff ↗
R
R 3.1.0 released · 2014-04-10
1.1
2014-04-05 · diff ↗
1.0
2014-04-02
R
R 3.0.0 released · 2013-04-03

Package metadata

First published: 2014-04-02
Total releases: 13 / 12 yrs
License: GPL-2 | GPL-3 OSI
Bundled data: 17 KB / 9 files
Download size: 53 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("ssym")

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 ssym version 1.5.8 [Data set]. HJJB, LLC. Data release v2026-08-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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