flash_greedy_init_irlba: Initialize a flash factor using IRLBA

In flashier: Empirical Bayes Matrix Factorization

Initialize a flash factor using IRLBA

Description

Initializes a new ("greedy") flash factor using irlba. This can be somewhat faster than flash_greedy_init_default for large, dense data matrices. For sparse matrices of class Matrix, the default initialization should generally be preferred.

Usage

flash_greedy_init_irlba(flash, seed = 666, ...)

Arguments

flash	A flash_fit object.
seed	Since initialization is random, a default seed is set for reproducibility.
...	Additional parameters to be passed to irlba.

Value

A list of length two consisting of, respectively, the vector of initial values for loadings \ell_{\cdot k} and the vector of initial factor values f_{\cdot k}.

See Also

flash_greedy, flash_greedy_init_default, flash_greedy_init_softImpute

flashier documentation built on Oct. 17, 2023, 5:07 p.m.