# API Reference


## Functions


Extract, join, and summarise tidy draws from ArviZ objects.


[parameter_draws()](parameter_draws.md#tidydraws.parameter_draws)  
Extract posterior draws for one or more variables into a tidy Polars DataFrame.

[prediction_draws()](prediction_draws.md#tidydraws.prediction_draws)  
Join posterior predictive draws to a covariate DataFrame.

[compare_draws()](compare_draws.md#tidydraws.compare_draws)  
Extract and stack draws from multiple groups (e.g., posterior and prior).

[point_interval()](point_interval.md#tidydraws.point_interval)  
Compute point estimates and uncertainty intervals from tidy draws.