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>.
Versions across snapshots
| Version | Repository | File | Size |
|---|---|---|---|
1.5.0 |
2026-04-09 windows/windows R-4.5 | sitar_1.5.0.zip |
795.8 KiB |