sitar: Super Imposition by Translation and Rotation Growth Curve Analysis

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>.

Package details

AuthorTim Cole [cre, aut, cph] (<>)
MaintainerTim Cole <>
LicenseGPL (>= 2)
Package repositoryView on CRAN
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sitar documentation built on July 9, 2023, 6:51 p.m.