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conquestr  

An R Package to Extend 'ACER ConQuest'
View on CRAN: Click here


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

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

Install by package version:
library("remotes")
install_version("conquestr", "1.5.5")



Attach the package and use:
library("conquestr")
Maintained by
Dan Cloney
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2019-03-08
Latest Update: 2025-05-18
Description:
Extends 'ACER ConQuest' through a family of functions designed to improve graphical outputs and help with advanced analysis (e.g., differential item functioning). Allows R users to call 'ACER ConQuest' from within R and read 'ACER ConQuest' System Files (generated by the command `put` ). Requires 'ACER ConQuest' version 5.33.2 or later. A demonstration version can be downloaded from .
How to cite:
Dan Cloney (2019). conquestr: An R Package to Extend 'ACER ConQuest'. R package version 1.5.5, https://cran.r-project.org/web/packages/conquestr. Accessed 05 Jun. 2026.
Previous versions and publish date:
0.3.7 (2019-03-08 15:22), 0.5.1 (2020-02-07 08:10), 0.8.5 (2020-08-10 10:10), 0.9.96 (2022-04-01 12:50), 1.0.7 (2023-03-12 10:00), 1.1.1 (2024-01-09 05:40), 1.3.0 (2024-02-18 04:20), 1.3.4 (2024-07-24 08:00), 1.4.5 (2025-02-19 01:40), 1.5.1 (2025-05-18 09:50)
Other packages that cited conquestr R package
View conquestr citation profile
Other R packages that conquestr depends, imports, suggests or enhances
Complete documentation for conquestr
Functions, R codes and Examples using the conquestr R package
Some associated functions: ConQuestCall . ConQuestRout . ConQuestSys . ItemDfStdZ . ItemDfStdZMerge . ReadADesignMatrices . ReadAllCaseEstimates . ReadAllGroupsData . ReadAllResponseData . ReadAllY . ReadAnchor . ReadAnchorList . ReadBDesignMatrices . ReadBandDefine . ReadBandDefinesList . ReadBitSet . ReadBoolean . ReadBooleanList . ReadCDesignMatrices . ReadCategorise . ReadCategoriseList . ReadCodeList . ReadDataRecord . ReadDouble . ReadDoubleList . ReadEstimatesRecord . ReadFit . ReadFitList . ReadGExportOptions . ReadGExportOptionsList . ReadGraph . ReadGroupsOneCase . ReadHistory . ReadIRecode . ReadIRecodeList . ReadImplicitVar . ReadInteger . ReadIntegerList . ReadIntegerListList . ReadItemSet . ReadItemSetList . ReadKey . ReadKeyList . ReadLabel . ReadLabelList . ReadLookUp . ReadLookUpList . ReadMatrix . ReadMatrixList . ReadMatrixVars . ReadParameters . ReadParametersList . ReadPoint . ReadRandomStructure . ReadRegression . ReadRegressionList . ReadRegressionListLeg . ReadResponse . ReadResponseList . ReadSeries . ReadString . ReadStringList . ReadSys . ReadTerms . ReadTermsList . ReadVarInfo . ReadVarList . ReadVariable . ReadVariableList . ReadYOneCase . checkItemRespValid . checkNoExtraVars . checkVars . checkVarsExist . cnvrtItemParam . createConQuestProject . findConQuestExe . fisherTrnsfrm . fmtCqItanal . fmtCqItanalSmry . fmtCqItanalTbl . genItems . genResponses . geom_line_or_smooth . getCqChain . getCqData . getCqDataDf . getCqEsts . getCqFit . getCqHist . getCqItanal . getCqItanalFacility . getCqItanalSummary . getCqKeys . getCqLongLabs . getCqParams . getCqPid . getCqResp . getCqRespModel . getCqScores . getCqTerms . getCqVars . getCqYData . getItemMatrix . ginsOnDims . guide_remove_groups . guide_remove_linetype . infoWI . informationWrightMap . isCqConverged . itemInfoAtTheta . itemInfoOverTheta . itemListToDeltaDots . itemListToThresholds . itemResp . makeItemList . mleCalc . myAbilitiesHelper . myItemHelper . orderItanalCols . pX . perturbResp . plotCCC . plotCqHist . plotDif . plotItemMap . plotModelCCC . plotModelExp . plotRout . postProcessGncases . postProcessSys . pvMeanVar . q3ExpCorrect . rawScore . readCharSafe . recodeResps . replaceInDataFrame . replaceInVector . routPointsToDf . routType . searchConQuestSys . simplef . simplep . steigerStat . summariseCqChain . sysFileOk . sysToBMatrixDf . sysToDimLabels . sysToItemDifDf . sysToItemLabels . sysToItems . testInfoAtTheta . testInfoOverTheta . thetaScore . theta_ll . thrstThrsh . transformPvs . zapNulls . zapSystemMissing . 
Some associated R codes: RcppExports.R . ReadConQuestLibrary.R . ReadConQuestRout_createDF.R . ReadConQuestState.R . ReadConQuestState_createDF.R . cleaningHelpers.R . conquestr.R . conquestrFunc.R . generateHelpers.R . infoHelpers.R . itanalHelpers.R . plotGeneral.R . plotRout.R . postProcessCqSysfile.R . pvHelpers.R . residHelpers.R . showHelpers.R . thrstThrsh.R .  Full conquestr package functions and examples
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