Type: Package
Package: sitar
Title: Super Imposition by Translation and Rotation Growth Curve
        Analysis
Version: 1.5.0.9001
Authors@R: 
    person(given = "Tim",
           family = "Cole",
           role = c("cre", "aut", "cph"),
           email = "tim.cole@ucl.ac.uk",
           comment = c(ORCID = "0000-0001-5711-8200"))
Maintainer: Tim Cole <tim.cole@ucl.ac.uk>
Description: 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>.
License: GPL (>= 2)
URL: https://github.com/statist7/sitar
Depends: nlme, R (>= 4.1.0)
Imports: dplyr, forcats, ggplot2, glue, graphics, magrittr, methods,
        purrr, rlang, rsample, splines, splines2, stats, tibble, tidyr
Suggests: knitr, rmarkdown
VignetteBuilder: knitr
Encoding: UTF-8
LazyData: yes
LazyLoad: yes
RoxygenNote: 7.3.2
BugReports: https://github.com/statist7/sitar/issues
Config/pak/sysreqs: libicu-dev
Repository: https://statist7.r-universe.dev
Date/Publication: 2025-07-26 22:38:44 UTC
RemoteUrl: https://github.com/statist7/sitar
RemoteRef: HEAD
RemoteSha: c6d70481a4a9b09b8dc32f4d1c28c1a3622aee1e
NeedsCompilation: no
Packaged: 2026-07-03 19:26:24 UTC; root
Author: Tim Cole [cre, aut, cph] (ORCID:
    <https://orcid.org/0000-0001-5711-8200>)