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>.
Version: 1.5.0 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 Published: 2025-07-26 DOI: 10.32614/CRAN.package.sitar Author: Tim Cole [cre, aut, cph] Maintainer: Tim Cole <tim.cole at ucl.ac.uk> BugReports: https://github.com/statist7/sitar/issues License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] URL: https://github.com/statist7/sitar NeedsCompilation: no Materials: README, NEWS CRAN checks: sitar results Documentation: Downloads: Reverse dependencies: Linking:Please use the canonical form https://CRAN.R-project.org/package=sitar to link to this page.
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