ref_process
Usage
ref_process(kernel = c("matern32", "stable"), stable_rank = TRUE, ell = 5)ref_process() builds the dependence kernel for ref_dynamics().
"matern32" is stable rank + Matern-3/2 + nugget; "stable" is stable
rank + nugget only (a single correlation shared by every positive lag),
the right model when visits share one fixed lag. ell = Inf also
selects the stable kernel.
Arguments
Section titled “Arguments”| Argument | Description |
|---|---|
kernel |
"matern32" or "stable". |
stable_rank |
Include a subject-level intercept. |
ell |
Initial length-scale (Inf selects the stable kernel). |
A ref_process object.