fa_like: Create a Factor Analysis-like low rank matrix factorization...

In LRMF3: Low Rank Matrix Factorization S3 Objects

Description

A low rank matrix factorization of a matrix X is parameterized by X ~= X %*% B %*% t(Y). The object is "factor analysis-like" because the middle matrix in the decomposition is arbitrary rather than diagonal.

Usage

fa_like(Z, B, Y, subclasses = NULL, ...)

Arguments

Z	A matrix of embeddings for each observation.
B	A mixing matrix describing how observation embeddings and topics interact. Does not have to be diagonal!
Y	A matrix describing the compositions of various topics or factors.
subclasses	A character vector of subclasses. Optional, defaults to NULL.
...	Optional additional items to pass to the constructor.

Examples

s <- svd(as.matrix(trees))

fa_like(s$u, diag(s$d), s$v)

LRMF3 documentation built on Feb. 10, 2022, 1:09 a.m.