Precompute Workspace for Optimized Mixed Model

Performs expensive matrix computations that don't depend on the response vector, allowing for efficient reuse across multiple voxels.

Usage

mixed_precompute(X, Z, K = NULL)

Arguments

X

Fixed effects design matrix (n × p)

Z

Random effects design matrix (n × q)

K

Kinship/covariance matrix for random effects (q × q)

Value

Workspace object for use with mixed_solve_optimized