Correlate elements
correlate_variables(data, sim_args, ...)Data simulated from other functions to pass to this function.
A named list with special model formula syntax. See details and examples for more information. The named list may contain the following:
fixed: This is the fixed portion of the model (i.e. covariates)
random: This is the random portion of the model (i.e. random effects)
error: This is the error (i.e. residual term).
correlate: These are the correlations for random effects and/or fixed effects.
Additional arguments, currently not used.