irtrees (version 1.0.0)

Estimation of Tree-Based Item Response Models

Description

Helper functions and example data sets to facilitate the estimation of IRTree models from data with different shape and using different software.

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Version

Install

install.packages('irtrees')

Monthly Downloads

255

Version

1.0.0

License

GPL (>= 2)

Maintainer

Ivailo Partchev

Last Published

December 14th, 2021

Functions in irtrees (1.0.0)

LtoL_single.tree

Long-to-long, single tree

WtoL_multi.tree

Wide-to-long, multiple trees

VerbAgg3

Verbal Aggression Data, Three-Category Items

dendrify

Measurement Mapping for an IRTree Model

graph2mx

Convert a tree to a mapping matrix

irtrees-package

Estimation of Tree-Based Item Response Models

tolong

Convert a wide-format matrix to long format

neslat

Example Data: Nested Hierarchical Categories

WtoW_single.tree

Wide-to-wide, one tree

nesresp

Example Data: Nested Hierarchical Latent Variables

exogenize

Structural Mapping for an IRTree Model

linresp

Example Data: Linear Hierarchical Categories

linlat

Example Data: Sequential-Order Latent Variable Models

WtoW_multi.tree

Wide-to-wide, multiple trees

WtoL_single.tree

Wide-to-long, one tree

LtoL_multi.tree

Long-to-long, multiple trees

VerbAgg2

Verbal Aggression Data, Dichotomized Items

LtoW_multi.tree

Long-to-wide, multiple trees

LtoW_single.tree

Long-to-wide, single tree