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) and developed as the SITAR method by Cole et al (2010) .

sitar

Growth curve analysis

Reference manual

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install.packages("sitar")

1.5.0 by Tim Cole, a year ago

https://github.com/statist7/sitar

Report a bug at https://github.com/statist7/sitar/issues

Browse source code at https://github.com/cran/sitar

Authors: Tim Cole [cre, aut, cph] (ORCID:

Documentation:   PDF Manual  

GPL (>= 2) license

Imports dplyr, forcats, ggplot2, glue, graphics, magrittr, methods, purrr, rlang, rsample, splines, splines2, stats, tibble, tidyr

Depends on nlme

Suggests knitr, rmarkdown

Imported by nlive.

Suggested by bsitar.

See at CRAN

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