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GGUM  

Generalized Graded Unfolding Model
View on CRAN: Click here


Download and install GGUM package within the R console
Install from CRAN:
install.packages("GGUM")

Install from Github:
library("remotes")
install_github("cran/GGUM")

Install by package version:
library("remotes")
install_version("GGUM", "0.5")



Attach the package and use:
library("GGUM")
Maintained by
Jorge N. Tendeiro
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2018-01-26
Latest Update: 2023-09-08
Description:
An implementation of the generalized graded unfolding model (GGUM) in R, see Roberts, Donoghue, and Laughlin (2000) ). 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.
How to cite:
Jorge N. Tendeiro (2018). GGUM: Generalized Graded Unfolding Model. R package version 0.5, https://cran.r-project.org/web/packages/GGUM. Accessed 06 Aug. 2026.
Previous versions and publish date:
0.3.1 (2018-01-26 10:33), 0.3.2 (2018-07-04 11:20), 0.3.3 (2018-10-04 13:10), 0.4-1 (2020-05-18 18:30), 0.4-2 (2021-02-21 18:40), 0.4-3 (2021-10-07 16:30), 0.4 (2020-01-21 06:10), (2026-07-09 08:04)
Other packages that cited GGUM R package
View GGUM citation profile
Other R packages that GGUM depends, imports, suggests or enhances
Complete documentation for GGUM
Functions, R codes and Examples using the GGUM R package
Some associated functions: GGUM-package . GGUM . GUM . GenData.GGUM . MODFIT . Theta.EAP . export.GGUM2004 . plotCRC . plotICC . plotIIF . plotTCC . plotTIF . probs.GGUM . read.item.GGUM2004 . read.person.GGUM2004 . run.GGUM2004 . write.GGUM2004 . 
Some associated R codes: Accessory.R . GGUM.R . GGUM2004.R . GUM.R . GUM_internal.R . IRT_models.R . MODFIT.R . Methods.R . Model4.R . Plots.R . SanityChecks.R . pkgname.R .  Full GGUM package functions and examples
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