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 |
| 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) |
| Package source: | trajeR_1.0.tar.gz |
| Windows binaries: | r-devel: trajeR_0.11.1.zip, r-release: trajeR_0.11.1.zip, r-oldrel: trajeR_0.11.1.zip |
| macOS binaries: | r-release (arm64): trajeR_0.11.1.tgz, r-oldrel (arm64): trajeR_0.11.1.tgz, r-release (x86_64): trajeR_0.11.1.tgz, r-oldrel (x86_64): trajeR_0.11.1.tgz |
| Old sources: | trajeR archive |
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