trajeR: Group Based Modeling Trajectory

Estimation of group-based trajectory models, including finite mixture models for longitudinal data, supporting censored normal, zero-inflated Poisson, logit, and beta distributions, using expectation-maximization and quasi-Newton methods, with tools for model selection, diagnostics, and visualization of latent trajectory groups, <doi:10.4159/9780674041318>, Nagin, D. (2005). Group-Based Modeling of Development. Cambridge, MA: Harvard University Press. and Noel (2022), <https://orbilu.uni.lu/>, thesis.

Version:	1.0
Depends:	R (≥ 3.5)
Imports:	Rcpp (≥ 1.0.4.6), minpack.lm, numDeriv, ucminf, MASS, capushe, stats, cli
LinkingTo:	Rcpp, RcppArmadillo
Suggests:	knitr, rmarkdown, spelling, kableExtra
Published:	2026-08-03
DOI:	10.32614/CRAN.package.trajeR
Author:	Cédric Noel [aut, cre], Jang Schiltz [aut]
Maintainer:	Cédric Noel <cedric.noel at univ-lorraine.fr>
BugReports:	https://codeberg.org/cidric/trajeR/issues
License:	GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
URL:	https://codeberg.org/cidric/trajeR
NeedsCompilation:	yes
SystemRequirements:	C++17
Language:	en-US
Materials:	README
CRAN checks:	trajeR results

Documentation:

Reference manual:	trajeR.html , trajeR.pdf
Vignettes:	Logit model (source, R code) Zero Inflated Poisson model (source, R code) Normal and Censored Normal model (source, R code) Group Based Trajectory Modelling (GBTM) (source, R code)

Downloads:

Package source:	trajeR_1.0.tar.gz
Windows binaries:	r-devel: trajeR_1.0.zip, r-release: trajeR_1.0.zip, r-oldrel: trajeR_1.0.zip
macOS binaries:	r-release (arm64): trajeR_1.0.tgz, r-oldrel (arm64): trajeR_1.0.tgz, r-release (x86_64): trajeR_1.0.tgz, r-oldrel (x86_64): trajeR_1.0.tgz
Old sources:	trajeR archive

Linking:

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