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>.

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Description file content

Type
Package
Package
sitar
Title
Super Imposition by Translation and Rotation Growth Curve Analysis
Version
1.1.1
Maintainer
Tim Cole
Description
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) .
License
GPL (>= 2)
URL
Depends
nlme, R (>= 3.0.0), splines
Imports
dplyr, glue, purrr, quantreg, rlang, rsample, stats, tibble, tidyr
Suggests
knitr, rmarkdown
VignetteBuilder
knitr
Encoding
UTF-8
LazyData
yes
LazyLoad
yes
RoxygenNote
6.1.1
NeedsCompilation
no
Packaged
2019-03-12 11:53:17 UTC; timcole
Author
Tim Cole [aut, cre] ()
Repository
CRAN
Date/Publication
2019-03-12 16:30:03 UTC

install.packages('sitar')

1.1.1

10 days ago

https://github.com/statist7/sitar

Tim Cole

GPL (>= 2)

Depends on

nlme, R (>= 3.0.0), splines

Imports

dplyr, glue, purrr, quantreg, rlang, rsample, stats, tibble, tidyr

Suggests

knitr, rmarkdown

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