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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>.
Getting started
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Package details |
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| Author | Tim Cole [cre, aut, cph] (<https://orcid.org/0000-0001-5711-8200>) |
| Maintainer | Tim Cole <tim.cole@ucl.ac.uk> |
| License | GPL (>= 2) |
| Version | 1.4.0 |
| URL | https://github.com/statist7/sitar |
| Package repository | View on CRAN |
| Installation |
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