R Observatory: Metrics for sitar version 1.5.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

sitar

1.5.0Package record

Super Imposition by Translation and Rotation Growth Curve Analysis

1packages dependsuggested by 1

5.9Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Tim ColeCRAN page ↗GitHub ↗Issues ↗

Functions for fitting and plotting SITAR (Super Imposition by Translation And Rotation) growth curve models. SITAR is a shape-invariant model with a regression B-spline mean curve and subject-specific random effects on both the measurement and age scales. The model was first described by Lindstrom (1995) doi:10.1002/sim.4780141807 and developed as the SITAR method by Cole et al (2010) doi:10.1093/ije/dyq115.

Changes in 1.5.0

Now depends on R >= 4.1.0.
update.sitar has been streamlined and should now be faster.
plot.sitar now handles par() parameters for combined distance-velocity plots differently - a breaking change. Instead of entries for the y2 axis being collected in parameter 'y2par', the entries for both y1 and y2 axes are now combined - see examples.
Other breaking changes in plot.sitar - the argument 'design' has been removed, and the first three tibble column names returned from the helper functions 'plot_d' etc are now the names of x, y and id from the original sitar call.
A new function getDV returns peak velocity and age at peak velocity for individuals, including those with a truncated growth curve - see the example.

Show all changes in 1.5.0Hide the rest of the changes in 1.5.0

predict.sitar now calculates velocity by differentiating each point (as dy/dx) rather than differentiating the mean spline curve. This means it handles velocities at a single age, and can return predicted distance and velocity for both levels 0 and 1.
In addition the arguments xfun and yfun in predict.sitar have been removed - a breaking change.
The d random effect now has an alternative parameterisation, controlled by the sitar argument d.adjusted. The age slope d is the regression coefficient of y on x, and when d.adjusted = TRUE x is first adjusted for random effects b and c, reflecting individual developmental age rather than chronological age. The default d.adjusted = FALSE appears on limited testing to fit better.

From NEWS in the release

Install

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

install.packages("sitar", 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("statist7/sitar")

Development version from statist7/sitar. 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-sitar

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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-sitar

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-sitar

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 3.7 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-08
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.5.0

READMEYes · 5 wordsVignettesYes · 2 · dynamicNEWSYes · 0% structured · mentions 1.5.0Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 45 (1 internal)includes a package overview page
Examples that run: 100%36 run in a plain check (1 of them under a condition)
Exported functions with examples: 89%
Documented parameters: 96%
Return-value docs: 96%
Help pages citing references: 24%

Vignettes (2)

How these are measured

Downloads

5.9K

CRAN downloads in the past year

Rank #5,450 · ~16/day · ~493/mo

Releases R versions

Daily download trend is not available in this view yet.

51530 days

1.5K90 days

5.9K1 year

Compare downloads with other packages →

Also on75 r2u6 autocran

How downloads are counted

Repository

statist7/sitar ↗Account: statist7

16Stars

3Forks

2Open issues

0Open PRs

4Releases

785Commits

2Commit identities

785 commits · Last activity 2025-07-26 · +6.7% stars, 30d · Default branch at 1.5.0.9001, ahead of CRAN 1.5.0 (checked 2026-10-21)

Responsiveness

How these are sampled

PRs merged (all time): 0%
Median days to close, 50 most recently updated closed issues: 10
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-04-07 · 142026-10-23 · 16

How these are measured

PracticesBeta

2 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/statist7/sitar on 2026-10-21.

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

13 external dependencies (excludes base and recommended)

Installing sitar adds 42 packages (22 with compiled code, 36 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, Rcpp 1.8 MB.

Depends (2)

R >= 4.1.0nlme

Imports (15)

dplyr forcats ggplot2 gluegraphicsmagrittrmethodspurrr rlang rsamplesplinessplines2statstibble tidyr

LinkingTo (0)

none

Suggests (2)

knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

Imports 1

Suggested by 1

Depends, Imports or LinkingTo, most downloaded first

nlive

Suggests, most downloaded first

bsitar

How these are counted

Code & Tests

Datasets

People & History

People (1)

Tim Cole

Releases (18)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
1.5.0Latest
record
2025-07-27 · current release · diff ↗ ·
added 1 export
getDV
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
1.4.0
record
2023-06-23 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.3.0
record
2022-07-20 · diff ↗ ·
added 1 export
ob_convertr2
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
1.2.0
record
2021-04-22 · diff ↗ ·
added 4 exports
%>%, n_agegp, ob_convertr, optimal_design
R
R 4.0.0 released · 2020-04-24
1.1.2
record
2020-02-17 · diff ↗ ·
added 3 exports
getPeak, getTakeoff, getTrough
R
R 3.6.0 released · 2019-04-26
1.1.1
record
2019-03-12 · diff ↗ ·
added 1 export
apv_se
1.1.0
record
2018-06-19 · diff ↗ ·
removed 1 export
y2plot

added 8 exports
pdLMS, plot_D, plot_V, plot_a, plot_c, plot_d, plot_u, plot_v
R
R 3.5.0 released · 2018-04-23

Show 16 earlier eventsHide 16 earlier events

1.0.10
record
2017-09-15 · diff ↗ ·
removed 1 export
makess

added 4 exports
dfpower, dfset, getL, getPeakTrough
R
R 3.4.0 released · 2017-04-21
1.0.9
record
2017-01-09 · diff ↗
1.0.8
record
2016-10-18 · diff ↗ ·
added 3 exports
diffid, timegap, timegap.id
1.0.7
record
2016-07-31 · diff ↗ ·
removed 1 export
pattern:^[[:alpha:]]+

added 24 exports
AICadj, BICadj, LMS2z, LMSfit, bupdate, cLMS, codeplot, funcall, ifun, makess, mplot, plotclean, recalib, sitar, subsample, varexp, velout, xaxsd, xyadj, y2plot, yaxsd, z2cent, zLMS, zapvelout
1.0.6
record
2016-05-05 · diff ↗
R
R 3.3.0 released · 2016-05-03
1.0.5
record
2016-04-12 · diff ↗
1.0.4
record
2016-03-23 · diff ↗
1.0.3
record
2015-07-27 · diff ↗
1.0.2
record
2015-04-21 · diff ↗
R
R 3.2.0 released · 2015-04-16
1.0.1
record
2014-06-27 · diff ↗
R
R 3.1.0 released · 2014-04-10
1.0
record
2014-04-08
R
R 3.0.0 released · 2013-04-03

Package metadata

First published: 2014-04-08
Total releases: 18 / 12 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 4.1.0
Bundled data: 208 KB / 10 files
Download size: 543 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("sitar")

Format

Cole, T. (2025). sitar: Super Imposition by Translation and Rotation Growth Curve Analysis (Version 1.5.0) [Computer software]. https://doi.org/10.32614/CRAN.package.sitar

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 sitar version 1.5.0 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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