Package index • mirtverse

Workbench

Point-and-click analysis with reproducible code.

launch_workbench() workbench_app(): Launch the mirtverse workbench

Scripts from plain language

Describe an analysis in words and get a complete, tested R script.

mv_ask(): Write an analysis script from a plain-language request
mv_ask_setup(): Set up an AI model for mv_ask()
mv_plan() update_plan(): An analysis plan for mv_ask()
run_script() save_script(): Run or save a script written by mv_ask()
profile_data(): Summarise a data set without revealing its values

Choosing and understanding a model

select_model(): Model selection assistant
interpret(): Plain-language interpretation of IRT results
interpret_prompt(): Build a prompt for an AI assistant from a fitted model

Tidy outputs

tidy(<SingleGroupClass>) tidy(<MultipleGroupClass>): Tidy a mirt model into a data frame of parameters
glance(<SingleGroupClass>) glance(<MultipleGroupClass>): One-row model summary
augment(<SingleGroupClass>): Add person scores to the response data
item_table(): Tidy item statistics and item fit in one table

Graphics

gg_dif(): DIF effect sizes plot
gg_empirical(): Empirical versus model-implied item curve
gg_info(): Test and item information curves
gg_itemfit(): Item fit plot
gg_q3(): Local dependence heatmap (Yen's Q3)
gg_scores(): Distribution of person scores
gg_trace(): Item characteristic (trace) curves
gg_wright(): Wright map (person-item map)
autoplot(<SingleGroupClass>): Plot a mirt model with ggplot2
theme_mirtverse(): A clean ggplot2 theme for psychometric graphics

Differential item functioning

dif(): Differential item functioning (DIF) in one call

Item health cards and reports

item_card(): Item health card
item_cards(): Health cards for many items
mv_report(): One-call HTML report

Dashboards

Interactive results dashboards to share with people who do not use R.

mv_dashboard(): Results dashboard for sharing
export_dashboard(): Save a results dashboard to share

Response times

fit_rt(): Joint model for responses and response times
sim_rt(): Simulate responses and response times

Package

mirtverse mirtverse-package: mirtverse: a friendly workflow and reporting layer for mirt
reexports tidy glance augment autoplot: Objects exported from other packages