brms (version 0.9.1)

ranef.brmsfit: Extract Group-Level Estimates

Description

Extract the group-level ('random') effects of each level from a brmsfit object.

Usage

## S3 method for class 'brmsfit':
ranef(object, estimate = "mean", var = FALSE, ...)

Arguments

object

An object of class brmsfit.

estimate

The point estimate to be calculated for the random effects, either "mean" or "median".

var

logical; indicating if the covariance matrix for each random effects should be computed.

...

Further arguments to be passed to the function specified in estimate

Value

• A list of matrices (one per grouping factor), with factor levels as row names and group-level effects as column names.

Examples

fit <- brm(count ~ log_Age_c + log_Base4_c * Trt_c + (1+Trt_c|visit), 
             data = epilepsy, family = "poisson", chains = 1)
## group-level means with corresponding covariances
rf <- ranef(fit, var = TRUE)
attr(rf, "var")
## group-level medians
ranef(fit, estimate = "median")