IRTpp: Estimating IRT Parameters using the IRT Methodology
Version 0.2.6.1

An implementation of the IRT paradigm for the scoring of different instruments measuring latent traits (a.k.a Abilities) and estimating item parameters for a variety of models, this package is highly optimized using Rcpp and carefully written R for the rest of the package, it aims to expand IRT applications to those applications that require faster and more robust estimation procedures. See the IRTpp documentation and github site for more information and examples.

Browse man pages Browse package API and functions Browse package files

AuthorSICS Research Group
Date of publication2016-12-27 15:28:19
MaintainerCamilo Antonio Suarez Bolanos <caasuarezbo@unal.edu.co>
LicenseMIT + file LICENSE
Version0.2.6.1
URL https://github.com/SICSResearch/IRTpp
Package repositoryView on CRAN
InstallationInstall the latest version of this package by entering the following in R:
install.packages("IRTpp")

Man pages

abilityinterface: @name abilityinterface @param zita_par @param data @param...
alpha.c: Cronbach-Mesbah Curve
alpha.cronbach: Cronbach's alpha
an.parallel: Parallel Analysis
autoapply: Autoapply
biserial.cor: Biserial Correlation
check.model: model verification
checkModel: checkModel
collapseCells: Collapses Cells
eapinterface: eapinterface @param zita_par - @param dat - @param e_model -...
full.pattern.expand: Full expansion of patterns
gg: Probability for envelopes
gutt: Guttman's Lambda
indexPat: Index pattern
individual.traits: Estimate the latent traits.
information: Test or Item information
irtpp: Estimate a test item parameters.
irtpp.model: Valid model
irtpp.models: Available models
irtpp.p: Probability function for all models.
IRTpp-package: IRTpp : Item Response Theory Implemented in R and Cpp
llikm: Loglik in stem M
loglik: LogLikelihood of a IRT model
loglik.f: LogLikelihood of a IRT model
mapinterface: mapinterface @param zita_par - @param dat - @param e_model -...
model.transform: Model transformations
normalize: Normalize a vector
orlando_itemf: Orlando's statistic
parameter.list: Parameter list form
parameter.matrix: Parameter matrix form
parameters.initialize: parameters.initialize
pattern.expand: Expansion of patterns
pattern.freqs: Frequencies for the expanded pattern matrix
phi: Phi coefficient of correlation
plotevenlope: Confidence bands
polyserial.cor: Polyserial correlation
print.sentence: Print Sentence, Helper function Prints different strings...
prob: Probability multidimensional case
prob.2pl: 2PL fast probability function
prob.3pl: 3PL fast probability function
probability.1pl: 1PL probability function
probability.2pl: 2PL probability function
probability.3pl: 3PL probability function
rtnorm: Truncated normal simulation
SimulateItemParameters: Simulates item parameters for UIRT models.
simulateTest: Simulates a test
simulateTest.file: This function simulates tests according to a IRT model.
simulateTestMD: Simulate test Multidimensional
s_ss: Calculates the likelihoods.
testmulti: Multidimensional test
test.plot: Plot a test or an item.
ua: Undefined assignment, Helper function
uirtestimate: uirtestimate
x2: Statistical x2.
Yule: Yule coefficient of correlation
z3_itemf: Z3 statistic.
z3_personf: Z3 Person fit statistic

Functions

ACPI Source code
IRTpp-package Man page
SimulateItemParameters Man page
Yule Man page Source code
abilityinterface Man page Source code
alpha.c Man page Source code
alpha.cronbach Man page Source code
an.parallel Man page Source code
autoapply Man page Source code
biserial.cor Man page Source code
check.model Man page Source code
checkModel Man page Source code
collapseCells Man page Source code
eapinterface Man page Source code
full.pattern.expand Man page Source code
gg Man page Source code
gutt Man page Source code
indexPat Man page Source code
individual.traits Man page Source code
individual.traits.aux Source code
information Man page Source code
irtpp Man page Source code
irtpp.model Man page Source code
irtpp.models Man page Source code
irtpp.p Man page Source code
items.reclassify Source code
llikm Man page Source code
loglik Man page Source code
loglik.f Man page Source code
mapinterface Man page Source code
model.transform Man page Source code
normalize Man page Source code
orlando_itemf Man page Source code
parameter.list Man page Source code
parameter.matrix Man page Source code
parameters.initialize Man page Source code
pattern.expand Man page Source code
pattern.freqs Man page Source code
phi Man page Source code
plotenvelope Man page Source code
plotevenlope Man page
polyserial.cor Man page Source code
print.sentence Man page Source code
prob Man page Source code
prob.2pl Man page Source code
prob.3pl Man page Source code
probability.1pl Man page Source code
probability.2pl Man page Source code
probability.3pl Man page Source code
rtnorm Man page Source code
s_ss Man page Source code
simulateItemParameters Man page Source code
simulateTest Man page Source code
simulateTest.file Man page Source code
simulateTestMD Man page Source code
test.plot Man page Source code
testmulti Man page Source code
ua Man page Source code
uirtestimate Man page Source code
x2 Man page Source code
z3_itemf Man page Source code
z3_personf Man page Source code

Files

inst
inst/irtppcpp
inst/irtppcpp/irtppcpp.mk
inst/irtppcpp/test2pl.csv
inst/irtppcpp/tests
inst/irtppcpp/tests/matrix.cpp
inst/irtppcpp/tests/test.cpp
inst/irtppcpp/src
inst/irtppcpp/src/type
inst/irtppcpp/src/type/LatentTraits.h
inst/irtppcpp/src/type/Matrix.h
inst/irtppcpp/src/type/parameter.h
inst/irtppcpp/src/type/ghquads.h
inst/irtppcpp/src/type/dataset.h
inst/irtppcpp/src/type/dataset.cpp
inst/irtppcpp/src/type/ghquads.cpp
inst/irtppcpp/src/model
inst/irtppcpp/src/model/onepl.h
inst/irtppcpp/src/model/model.h
inst/irtppcpp/src/model/threepl.h
inst/irtppcpp/src/model/twopl.h
inst/irtppcpp/src/main.cpp
inst/irtppcpp/src/estimation
inst/irtppcpp/src/estimation/mstep.cpp
inst/irtppcpp/src/estimation/mstep.h
inst/irtppcpp/src/estimation/emestimation.h
inst/irtppcpp/src/estimation/estep.cpp
inst/irtppcpp/src/estimation/LatentTraitEstimation.h
inst/irtppcpp/src/estimation/estep.h
inst/irtppcpp/src/utils
inst/irtppcpp/src/utils/Input.h
inst/irtppcpp/src/utils/andrade.h
inst/irtppcpp/src/utils/asa111.h
inst/irtppcpp/src/utils/ramsay.h
inst/irtppcpp/src/utils/Input.cpp
inst/irtppcpp/src/utils/cholesky.h
inst/irtppcpp/src/utils/asa111.cpp
inst/irtppcpp/irtppcpp.mk.orig
inst/irtppcpp/makefile
inst/irtppcpp/irtppcpp.mk.win64
inst/irtppcpp/README.md
inst/irtppcpp/irtppcpp.mk.win32
inst/irtppcpp/Cuads.csv
inst/irtppcpp/test.txt
inst/irtppcpp/LICENSE
inst/irtppcpp/include
inst/irtppcpp/include/catch.h
inst/irtppcpp/include/SPGO
inst/irtppcpp/include/SPGO/examples
inst/irtppcpp/include/SPGO/examples/Example_HillClimbing.cpp
inst/irtppcpp/include/SPGO/examples/Example_Any.cpp
inst/irtppcpp/include/SPGO/examples/Example_Brent.cpp
inst/irtppcpp/include/SPGO/examples/Example_BFGS.cpp
inst/irtppcpp/include/SPGO/makefile
inst/irtppcpp/include/SPGO/Function.hpp
inst/irtppcpp/include/SPGO/include
inst/irtppcpp/include/SPGO/include/Optimization
inst/irtppcpp/include/SPGO/include/Optimization/Heuristic
inst/irtppcpp/include/SPGO/include/Optimization/Heuristic/Parameter.hpp
inst/irtppcpp/include/SPGO/include/Optimization/Heuristic/HillClimbing.hpp
inst/irtppcpp/include/SPGO/include/Optimization/Unrestricted
inst/irtppcpp/include/SPGO/include/Optimization/Unrestricted/Singlevariable
inst/irtppcpp/include/SPGO/include/Optimization/Unrestricted/Singlevariable/Brent.hpp
inst/irtppcpp/include/SPGO/include/Optimization/Unrestricted/Multivariable
inst/irtppcpp/include/SPGO/include/Optimization/Unrestricted/Multivariable/BFGS.hpp
inst/irtppcpp/include/SPGO/include/Optimization/Optim.hpp
inst/irtppcpp/include/SPGO/include/Optimization/Restricted
inst/irtppcpp/include/SPGO/include/Optimization/Restricted/Restricted.hpp
inst/irtppcpp/include/SPGO/include/Types
inst/irtppcpp/include/SPGO/include/Types/Any.hpp
inst/irtppcpp/include/SPGO/include/Types/Generic.hpp
inst/extdata
inst/extdata/test1.R
inst/extdata/Cuads10.csv
inst/extdata/test.R
inst/extdata/Cuads.csv
inst/extdata/test3.R
inst/extdata/test2.R
inst/doc
inst/doc/simulateTest.html
inst/doc/estimate.Rmd
inst/doc/itemfit.Rmd
inst/doc/itemfit.html
inst/doc/simulateTest.R
inst/doc/Exploratory.Rmd
inst/doc/estimate.R
inst/doc/parameters.Rmd
inst/doc/Exploratory.html
inst/doc/estimate.html
inst/doc/parameters.html
inst/doc/simulateTest.Rmd
inst/doc/Exploratory.R
src
src/Makevars
src/util_package.cpp
src/util_package.h
src/Makevars.win
src/RcppExports.cpp
NAMESPACE
R
R/utils.R
R/models.R
R/initialization.R
R/itemfit.R
R/simulation.R
R/exploratory.R
R/RcppExports.R
R/reclassifyPCA.R
R/irtpp.R
vignettes
vignettes/estimate.Rmd
vignettes/itemfit.Rmd
vignettes/Exploratory.Rmd
vignettes/parameters.Rmd
vignettes/simulateTest.Rmd
README.md
MD5
build
build/vignette.rds
DESCRIPTION
man
man/IRTpp-package.Rd
man/test.plot.Rd
man/biserial.cor.Rd
man/polyserial.cor.Rd
man/parameters.initialize.Rd
man/mapinterface.Rd
man/information.Rd
man/loglik.f.Rd
man/parameter.list.Rd
man/pattern.freqs.Rd
man/print.sentence.Rd
man/orlando_itemf.Rd
man/irtpp.model.Rd
man/SimulateItemParameters.Rd
man/checkModel.Rd
man/probability.3pl.Rd
man/gutt.Rd
man/irtpp.Rd
man/prob.Rd
man/abilityinterface.Rd
man/plotevenlope.Rd
man/prob.3pl.Rd
man/z3_personf.Rd
man/loglik.Rd
man/Yule.Rd
man/pattern.expand.Rd
man/an.parallel.Rd
man/s_ss.Rd
man/simulateTest.Rd
man/gg.Rd
man/indexPat.Rd
man/testmulti.Rd
man/x2.Rd
man/simulateTestMD.Rd
man/individual.traits.Rd
man/parameter.matrix.Rd
man/rtnorm.Rd
man/full.pattern.expand.Rd
man/uirtestimate.Rd
man/llikm.Rd
man/simulateTest.file.Rd
man/probability.1pl.Rd
man/z3_itemf.Rd
man/eapinterface.Rd
man/normalize.Rd
man/irtpp.p.Rd
man/irtpp.models.Rd
man/alpha.cronbach.Rd
man/phi.Rd
man/prob.2pl.Rd
man/probability.2pl.Rd
man/model.transform.Rd
man/alpha.c.Rd
man/collapseCells.Rd
man/check.model.Rd
man/autoapply.Rd
man/ua.Rd
cleanup
LICENSE
IRTpp documentation built on May 19, 2017, 7:35 a.m.