Build an [MsSparse] spec for [ms_extract(method =)].
Usage
ms_sparse(
variant = "l1",
lambda = 0,
mu = 0,
delta = 0,
tol = 1e-07,
max_iter = 2000,
seed = 1
)Arguments
- variant
`"l1"` (KL + L1 penalties on both factors; default) or `"volume"` (KL + log-det volume regularizer on W).
- lambda
signatures penalty (volume strength / H-row L1).
- mu
W-column L1 penalty (l1 variant; must be > 0).
- delta
volume ridge (volume variant; 0 = kernel default 1).
- tol
convergence tolerance (relative objective change).
- max_iter
iteration cap.
- seed
initializer seed (in-house PCG64 stream).