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plotlsirm (version 0.1.3)

Plot Toolkit for Latent Space Item Response Models

Description

Provides publication‑quality and interactive plots for exploring the posterior output of Latent Space Item Response Models, including Posterior Interaction Profiles, radar charts, 2‑D latent maps, and item‑similarity heat maps. The methods implemented in this package are based on work by Jeon, M., Jin, I. H., Schweinberger, M., Baugh, S. (2021) .

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Install

install.packages('plotlsirm')

Monthly Downloads

143

Version

0.1.3

License

GPL (>= 3)

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Maintainer

Jinwen Luo

Last Published

October 1st, 2025

Functions in plotlsirm (0.1.3)

iccsurface

Latent-Space Item Characteristic Surface
crossdist_fast

Fast pairwise (cross) Euclidean distances
lsirmicc

Latent-Space Item Characteristic Curve (ICC)
itemheatmap

Heat-map of item-item similarity in latent space
radarplot

Radar plot of branch-specific abilities (single or multiple subjects)
interprofile

Draw a Posterior Interaction Profile in either style
itemsimilarity

Similarity profile for a focal item
pip_waterfall

Posterior Interaction Profile - Waterfall style
pip_fountain

Posterior Interaction Profile - Fountain style
intermap2d

2-D latent-space interaction map (persons vs. items)
rescale_to_range

Rescale a numeric vector to a new range
strengthplot

Item-strength profile for a single person
vec_mat_dist

Euclidean distance from a single vector to each row of a matrix