Package: eRm 1.0-10

eRm: Extended Rasch Modeling

Fits Rasch models (RM), linear logistic test models (LLTM), rating scale model (RSM), linear rating scale models (LRSM), partial credit models (PCM), and linear partial credit models (LPCM). Missing values are allowed in the data matrix. Additional features are the ML estimation of the person parameters, Andersen's LR-test, item-specific Wald test, Martin-Loef-Test, nonparametric Monte-Carlo Tests, itemfit and personfit statistics including infit and outfit measures, ICC and other plots, automated stepwise item elimination, simulation module for various binary data matrices.

Authors:Patrick Mair [cre, aut], Thomas Rusch [aut], Reinhold Hatzinger [aut], Marco J. Maier [aut], Rudolf Debelak [ctb]

eRm_1.0-10.tar.gz
eRm_1.0-10.zip(r-4.7)eRm_1.0-10.zip(r-4.6)eRm_1.0-10.zip(r-4.5)
eRm_1.0-10.tgz(r-4.6-x86_64)eRm_1.0-10.tgz(r-4.6-arm64)eRm_1.0-10.tgz(r-4.5-x86_64)eRm_1.0-10.tgz(r-4.5-arm64)
eRm_1.0-10.tar.gz(r-4.7-arm64)eRm_1.0-10.tar.gz(r-4.7-x86_64)eRm_1.0-10.tar.gz(r-4.6-arm64)eRm_1.0-10.tar.gz(r-4.6-x86_64)
eRm_1.0-10.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
eRm/json (API)

# Install 'eRm' in R:

install.packages('eRm', repos = c('https://pmair78.r-universe.dev', 'https://cloud.r-project.org'))

Uses libs:

fortran– Runtime library for GNU Fortran applications

Datasets:

llraDat1 - An Artificial LLRA Data Set
llraDat2 - An Artificial LLRA Data Set
llradat3 - An Artificial LLRA Data Set
lltmdat1 - Data for Computing Extended Rasch Models
lltmdat2 - Data for Computing Extended Rasch Models
lpcmdat - Data for Computing Extended Rasch Models
lrsmdat - Data for Computing Extended Rasch Models
pcmdat - Data for Computing Extended Rasch Models
pcmdat2 - Data for Computing Extended Rasch Models
raschdat1 - Data for Computing Extended Rasch Models
raschdat1_RM_fitted - Data for Computing Extended Rasch Models
raschdat1_RM_lrres2 - Data for Computing Extended Rasch Models
raschdat1_RM_plotDIF - Data for Computing Extended Rasch Models
raschdat2 - Data for Computing Extended Rasch Models
raschdat3 - Data for Computing Extended Rasch Models
raschdat4 - Data for Computing Extended Rasch Models
rsmdat - Data for Computing Extended Rasch Models
xmpl - Example Data
xmplbig - Example Data

On CRAN:

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

fortran

6.63 score 4 stars 6 packages 255 scripts 2.3k downloads 24 mentions 47 exports 8 dependencies

Last updated from:3353b2b682. Checks:13 OK. Indexed: yes.

Target	Result	Time
linux-devel-arm64	OK	148
linux-devel-x86_64	OK	134
source / vignettes	OK	253
linux-release-arm64	OK	533
linux-release-x86_64	OK	144
macos-release-arm64	OK	138
macos-release-x86_64	OK	450
macos-oldrel-arm64	OK	129
macos-oldrel-x86_64	OK	374
windows-devel	OK	191
windows-release	OK	162
windows-oldrel	OK	135
wasm-release	OK	108

Exports:build_W coef.ppar collapse_W gofIRT i_info IC item_info itemfit LLRA llra.datprep LLTM LPCM LRSM LRtest MLoef NPtest PCM person.parameter personfit PersonMisfit phi.range plotDIF plotGOF plotGR plotICC plotINFO plotjointICC plotPImap plotPWmap plotTR pmat RM rsampler rsctrl rsextrmat rsextrobj RSM rstats SepRel sim.2pl sim.locdep sim.rasch sim.xdim stepwiseIt test_info thresholds Waldtest

Dependencies:colorspace GPArotation lattice MASS Matrix mnormt nlme psych

eRm Basics

Rendered fromeRm.Rnwusingutils::Sweave

Last update: 2018-10-03
Started: 2013-12-06

Help page	Topics
Analysis of Deviances for Rasch Models	anova.eRm print.eRm_anova
Analysis of Deviance for Linear Logistic Models with Relaxed Assumptions	anova.llra
Automatized Construction of LLRA Design Matrix	build_catdes build_effdes build_trdes build_W get_item_cats
Convenient Collapsing of LLRA Design Matrix	collapse_W
Data for Computing Extended Rasch Models	eRm.data lltmdat1 lltmdat2 lpcmdat lrsmdat pcmdat pcmdat2 raschdat1 raschdat1_RM_fitted raschdat1_RM_lrres2 raschdat1_RM_plotDIF raschdat2 raschdat3 raschdat4 rsmdat
Various model tests and fit indices	gofIRT gofIRT.ppar print.gof summary.gof
Information criteria	IC IC.ppar
Calculate Item Information for 'eRm' objects	item_info i_info
Residuals, Personfit and Itemfit Statistics	itemfit itemfit.ppar personfit personfit.ppar pmat pmat.ppar print.ifit print.pfit print.resid residuals.ppar
Fit Linear Logistic Models with Relaxed Assumptions (LLRA)	LLRA print.llra
Prepare Data Set for LLRA Analysis	llra.datprep
An Artificial LLRA Data Set	llraDat1
An Artificial LLRA Data Set	llraDat2
An Artificial LLRA Data Set	llradat3
Estimation of linear logistic test models	LLTM
Estimation of linear partial credit models	LPCM
Estimation of linear rating scale models	LRSM
Computation of Andersen's LR-test.	LRtest LRtest.Rm plotGOF plotGOF.LR print.LR summary.LR
Martin-Löf's Likelihood-Ratio-Test	MLoef print.MLoef summary.MLoef
A Function to Perform Nonparametric Rasch Model Tests	NonparametricTests NPtest
Estimation of partial credit models	PCM
Estimation of Person Parameters	coef.ppar confint.ppar logLik.ppar person.parameter person.parameter.eRm plot.ppar print.logLik.ppar print.ppar summary.ppar
Person Misfit	PersonMisfit PersonMisfit.ppar
Example User Function	phi.range
Confidence intervals plot of item parameter estimates.	plotDIF
Plot Treatment or Covariate Effects for LLRA	plotGR
ICC Plots	plotICC plotICC.Rm plotjointICC plotjointICC.dRm
Plot Information For ''eRm'' objects	plotINFO
Person-Item Map	plotPImap
Pathway Map	plotPWmap
Plot Trend Effects for LLRA	plotTR
Predict methods	predict.ppar
Methods for extended Rasch models	coef.eRm confint.eRm logLik.eRm model.matrix.eRm print.eRm summary.eRm vcov.eRm
Rasch Sampler Package	RaschSampler
Estimation of Rasch Models	RM
Sampling Binary Matrices	rsampler
Control Object	RSctr
Controls for the Sampling Function	rsctrl
Extracting a Matrix	rsextrmat
Extracting Encoded Sample Matrices	rsextrobj
Estimation of rating scale models	RSM
Sample Objects	RSmpl RSmplext
Calculating Statistics for the Sampled Matrices	rstats
Person Separation Reliability	print.eRm_SepRel SepRel summary.eRm_SepRel
Simulation of 2-PL Data	sim.2pl
Simulation locally dependent items	sim.locdep
Simulation of Rasch homogeneous data	sim.rasch
Simulation of multidimensional binary data	sim.xdim
Stepwise item elimination	print.step stepwiseIt stepwiseIt.eRm
Summarizing Linear Logistic Models with Relaxed Assumptions (LLRA)	print.summary.llra summary.llra
Summary Method for Control Objects	summary.RSctr
Summary Methods for Sample Objects	summary.RSmpl summary.RSmplext
Calculate Test Information For 'eRm' objects	test_info
Computation of item-category treshold parameters.	confint.threshold print.threshold summary.threshold thresholds thresholds.eRm
Item-Specific Wald Test	print.wald Waldtest Waldtest.Rm
Example Data	xmpl xmplbig

Package: eRm 1.0-10

eRm: Extended Rasch Modeling

Citation

Readme and manuals

Help Manual

Usage by other packages (reverse dependencies)