Package: gammi 0.2

Nathaniel E. Helwig

gammi: Generalized Additive Mixed Model Interface

An interface for fitting generalized additive models (GAMs) and generalized additive mixed models (GAMMs) using the 'lme4' package as the computational engine, as described in Helwig (2024) <doi:10.3390/stats7010003>. Supports default and formula methods for model specification, additive and tensor product splines for capturing nonlinear effects, and automatic determination of spline type based on the class of each predictor. Includes an S3 plot method for visualizing the (nonlinear) model terms, an S3 predict method for forming predictions from a fit model, and an S3 summary method for conducting significance testing using the Bayesian interpretation of a smoothing spline.

Authors:Nathaniel E. Helwig [aut, cre]

gammi_0.2.tar.gz
gammi_0.2.tar.gz(r-4.5-noble)gammi_0.2.tar.gz(r-4.4-noble)
gammi_0.2.tgz(r-4.4-emscripten)gammi_0.2.tgz(r-4.3-emscripten)
gammi.pdf |gammi.html✨
gammi/json (API)

# Install 'gammi' in R:
install.packages('gammi', repos = 'https://cloud.r-project.org')
Datasets:
  • exam - Cross-Classified Examination Data

On CRAN:

Conda:

This package does not link to any Github/Gitlab/R-forge repository. No issue tracker or development information is available.

1.30 score 167 downloads 11 exports 13 dependencies

Last updated 2 months agofrom:fd129d9a38. Checks:2 OK, 1 NOTE. Indexed: yes.

TargetResultLatest binary
Doc / VignettesOKMar 31 2025
R-4.5-linuxOKMar 31 2025
R-4.4-linuxNOTEMar 31 2025

Exports:gammigammi.defaultgammi.formulaplot.gammipredict.gammirowKroneckerspline.basisspline.model.matrixsummary.gammivisualizer1visualizer2

Dependencies:bootlatticelme4MASSMatrixminqanlmenloptrrbibutilsRcppRcppEigenRdpackreformulas

Citation

To cite package ‘gammi’ in publications use:

Helwig NE (2025). gammi: Generalized Additive Mixed Model Interface. R package version 0.2, https://CRAN.R-project.org/package=gammi.

Corresponding BibTeX entry: 

  @Manual{,
    title = {gammi: Generalized Additive Mixed Model Interface},
    author = {Nathaniel E. Helwig},
    year = {2025},
    note = {R package version 0.2},
    url = {https://CRAN.R-project.org/package=gammi},
  }