build_cl2_working_standard: Build CL2 working representation for standard single-LP families
Description
Factorizes per-observation scores as `Xw_i * z_i` to avoid constructing
a dense score matrix.
Usage
build_cl2_working_standard(b, cluster_id)
Value
List with `Xw`, `z`, and `cluster_id`.
Arguments
- b
Fitted GAM object.
- cluster_id
Cluster vector.