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.
flash_greedy_init_irlba(flash, seed = 666, ...)
A flash_fit
object.
Since initialization is random, a default seed is set for reproducibility.
Additional parameters to be passed to irlba
.
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 \(f_{\cdot k}\).