OLStrajr

0.1.0

Ordinary Least Squares Trajectory Analysis

0packages depend

2.1Kdownloads / year

67.5%test coverage

0/13checks pass

Overview

About

Maintained by Mackson NcubeFirst published 2023-06-191 releasesCRAN page ↗GitHub ↗

The 'OLStrajr' package provides comprehensive functions for ordinary least squares (OLS) trajectory analysis and case-by-case OLS regression as outlined in Carrig, Wirth, and Curran (2004) doi:10.1207/S15328007SEM1101_9 and Rogosa and Saner (1995) doi:10.3102/10769986020002149. It encompasses two primary functions, OLStraj() and cbc_lm(). The OLStraj() function simplifies the estimation of individual growth curves over time via OLS regression, with options for visualizing both group-level and individual-level growth trajectories and support for linear and quadratic models. The cbc_lm() function facilitates case-by-case OLS estimates and provides unbiased mean population intercept and slope estimators by averaging OLS intercepts and slopes across cases. It further offers standard error calculations across bootstrap replicates and computation of 95% confidence intervals based on empirical distributions from the resampling processes.

Install

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

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

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

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("mightymetrika/OLStrajr")

Development version from mightymetrika/OLStrajr. Installs pak first if it is not already available.

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-olstrajr

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-OLStrajr

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-OLStrajr

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

Health

CRAN checks

13NOTE

Failing flavors

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

Slowest check: 1.5 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.22

67.5%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-06-09
0 OK · 13 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
0 OK · 12 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
3 OK · 11 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 455 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 38%

Downloads

2.1K

CRAN downloads in the past year

Rank #21,006 · ~6/day · ~179/mo

Releases R versions

Daily download trend is not available in this view yet.

15530 days

52890 days

2.1K1 year

Compare downloads with other packages →

Also on98 r2u6 autocran

Repository

GitHub ↗ mightymetrika/olstrajr

0Stars

1Forks

0Open issues

0Open PRs

0Releases

67Commits

2Contributors

67 commits · Last activity 2023-06-22

Forks over time

2023-05-21 · 12026-07-07 · 1

Repository practices

Upstream repositoryBeta

4 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/mightymetrika/olstrajr on 2026-08-02.

Reproducibility and dev environment (1)

data-raw/

CRAN release process (1)

cran-comments.md

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Depends (1)

R >= 2.10

Imports (6)

bootbroom ggplot2 purrr tidyr tidyselect

LinkingTo (0)

none

Suggests (3)

knitr rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Datasets

People & History

People (2)

Maintainer (1)

Mackson Ncube

Author, Maintainer

Authors (1)

Mackson Ncube

Author, Maintainer

mightymetrika, LLC

Funders (1)

mightymetrika, LLC

Package Timeline

1 release. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
0.1.0Latest
2026-03-10 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2023-06-19
Total releases: 1 / 3 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 2.10
Bundled data: 0.6 KB / 2 files
Download size: 186 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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