Shaping input data

shape()

Prepare data for modeling

toy_dgirt_in

A minimal example of shaped data

summary() print() get_item_names() get_n() get_item_n() show(<dgirtIn>)

A class for data ready to model

Estimation

dgirt() dgmrp()

Fit a dynamic group IRT or single-issue MRP model

toy_dgirtfit

A minimal example of a fitted model

dgirt_fit-class

A class for fitted dynamic group IRT models

dgmrp_fit-class

A class for fitted dynamic group MRP models

dgo_fit-class

A class for fitted models

Postestimation

poststratify()

Reweight and aggregate estimates

dgirt_plot() plot(<dgo_fit>,<missing>) plot_rhats()

Plot estimates and diagnostic statistics