Package: GGUM 0.5
Jorge N. Tendeiro
GGUM: Generalized Graded Unfolding Model
An implementation of the generalized graded unfolding model (GGUM) in R, see Roberts, Donoghue, and Laughlin (2000) <doi:10.1177/01466216000241001>). It allows to simulate data sets based on the GGUM. It fits the GGUM and the GUM, and it retrieves item and person parameter estimates. Several plotting functions are available (item and test information functions; item and test characteristic curves; item category response curves). Additionally, there are some functions that facilitate the communication between R and 'GGUM2004'. Finally, a model-fit checking utility, MODFIT(), is also available.
Authors:
GGUM_0.5.tar.gz
GGUM_0.5.tar.gz(r-4.5-noble)GGUM_0.5.tar.gz(r-4.4-noble)
GGUM_0.5.tgz(r-4.4-emscripten)GGUM_0.5.tgz(r-4.3-emscripten)
GGUM.pdf |GGUM.html✨
GGUM/json (API)
| # Install 'GGUM' in R: |
| install.packages('GGUM', repos = c('https://cran.r-universe.dev', 'https://cloud.r-project.org')) |
Bug tracker:https://github.com/jorgetendeiro/ggum/issues
Last updated 2 years agofrom:5f01d424ae. Checks:1 OK, 2 NOTE. Indexed: no.
| Target | Result | Latest binary |
|---|---|---|
| Doc / Vignettes | OK | Mar 25 2025 |
| R-4.5-linux | NOTE | Mar 25 2025 |
| R-4.4-linux | NOTE | Mar 25 2025 |
Exports:export.GGUM2004GenData.GGUMGGUMGUMMODFITplotCRCplotICCplotIIFplotTCCplotTIFprobs.GGUMread.item.GGUM2004read.person.GGUM2004run.GGUM2004Theta.EAPwrite.GGUM2004
Dependencies:abindclicolorspacefansifarverggplot2glueGPArotationgridExtragtableisobandlabelinglatticelifecyclemagrittrMASSMatrixmgcvmnormtmunsellnlmepillarpkgconfigpsychR6rbibutilsRColorBrewerRdpackrJavarlangscalestibbleutf8vctrsviridisviridisLitewithrxlsxxlsxjars
Readme and manuals
Help Manual
| Help page | Topics |
|---|---|
| GGUM | GGUM-package _PACKAGE |
| Exports data in 'GGUM2004' friendly format | export.GGUM2004 |
| Generate data from the GUM/GGUM | GenData.GGUM |
| Fit the generalized graded unfolding model (GGUM) | GGUM |
| Fit the graded unfolding model (GUM) | GUM |
| MODFIT for the GGUM | MODFIT |
| Plot item category response curves (CRCs) | plotCRC |
| Plot item characteristic curves (ICCs) | plotICC |
| Plot item information functions (IIFs) | plotIIF |
| Plot test characteristic curve (TCC) | plotTCC |
| Plot test information function (TIF) | plotTIF |
| Compute model probabilities for the GGUM | probs.GGUM |
| Read 'GGUM2004' item estimates into R | read.item.GGUM2004 |
| Read 'GGUM2004' person estimates into R | read.person.GGUM2004 |
| Call 'GGUM2004' and import the estimated parameters into R | run.GGUM2004 |
| Estimate thetas and their SEs (GUM, GGUM) | Theta.EAP |
| Writes a command file for 'GGUM2004' | write.GGUM2004 |
