Package: brokenstick
Type: Package
Title: Broken Stick Model for Irregular Longitudinal Data
Version: 2.1.0
Authors@R: person("Stef", "van Buuren", email = "stef.vanbuuren@tno.nl", role = c("aut","cre"))
Description: The broken stick model describes a set of individual curves by a
    linear mixed model using a second-order linear B-spline. The main use of the model
    is to align irregularly observed data to a user-specified grid of break ages.
    All fitting can done in the Z-score scale, so non-linearity and irregular data
    can be treated as separate problems. This package contains functions for fitting
    a broken stick model to data, for predicting broken stick curves in new data,
    and for plotting the broken stick estimates. For additional documentation on 
    background, methodology and applications see
    <https://stefvanbuuren.name/publications/2021_brokenstick_JSS_manuscript.pdf>.
Depends: R (>= 3.5.0)
Imports: coda, dplyr, lme4, matrixsampling, methods, rlang, splines,
        stats, tidyr
Suggests: AGD, bookdown, ggplot2, grDevices, gridExtra, knitr, lattice,
        MASS, Matrix, mice, mvtnorm, plyr, svglite, testthat, rmarkdown
URL: https://github.com/growthcharts/brokenstick,
        https://growthcharts.org/brokenstick/
BugReports: https://github.com/growthcharts/brokenstick/issues
Encoding: UTF-8
License: MIT + file LICENSE
LazyData: TRUE
VignetteBuilder: knitr
RoxygenNote: 7.1.2
NeedsCompilation: no
Packaged: 2022-03-30 18:25:38 UTC; buurensv
Author: Stef van Buuren [aut, cre]
Maintainer: Stef van Buuren <stef.vanbuuren@tno.nl>
Repository: CRAN
Date/Publication: 2022-03-30 18:40:10 UTC
Built: R 4.0.5; ; 2022-04-21 15:19:52 UTC; windows
