tidy.SingleGroupClass: Convert MIRT SingleGroupClass to tidy tibble

In datacamp/tidymirt: Tidy Representations of Mirt Model Output

Convert MIRT SingleGroupClass to tidy tibble

Description

Convert MIRT SingleGroupClass to tidy tibble

Usage

## S3 method for class 'SingleGroupClass'
tidy(x, group_pars = TRUE, ...)

Arguments

x	mirt model (often returned by mirt() function)
group_pars	whether to include non-item parameters (e.g. latent mean or covariance)
...	passed along with model to coef method

Value

tibble with columns for item_number, item, term (e.g. a1, d), estimate

Examples

# We'll use examples from the mirt library (see ?mirt)
library(mirt)

#load mirt library LSAT section 7 data
data <- expand.table(LSAT7)

# one-factor model
mod1 <- mirt(data, 1)
tidy(mod1)
tidy(mod1, group_pars = FALSE)      # only item parameters

# two-factor model
mod2 <- mirt(data, 2)
tidy(mod2)

datacamp/tidymirt documentation built on June 13, 2022, 10:28 p.m.