posterior_predict.rater_fit: Draw from the posterior predictive distribution

In rater: Statistical Models of Repeated Categorical Rating Data

Draw from the posterior predictive distribution

Description

Draw from the posterior predictive distribution

Usage

## S3 method for class 'rater_fit'
posterior_predict(object, new_data, seed = NULL, ...)

Arguments

object	A rater_fit object.
new_data	New data for the model to be fit to. The must be in the form used in rater() except without the 'rating' column.
seed	An optional random seed to use.
...	Other arguments.

Details

The number of raters implied by the entries in the rater column must match the number of raters in the fitted model.

Value

The passed new_data augmented with a column 'z' containing the latent class of each item and 'rating' containing the simulated rating.

Examples

fit <- rater(anesthesia, "dawid_skene", verbose = FALSE)
new_data <- data.frame(item = rep(1:2, each = 5), rater = rep(1:5, 2))

predictions <- posterior_predict(fit, new_data)
predictions

rater documentation built on Aug. 8, 2025, 6:07 p.m.