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Perform Streaming SVD on a dbMatrix

Source: R/svd.R
db_svd.Rd

Perform Streaming SVD on a dbMatrix

Usage

db_svd(
  dbm,
  k = 10,
  center = TRUE,
  scale = FALSE,
  center_rows = NULL,
  memory_limit = getOption("dbMatrix.svd_memory", 500 * 1024^2),
  return_format = c("svd", "pca")
)

Arguments

dbm

A dbSparseMatrix object

k

Number of singular values to compute

center

Logical, center rows (default TRUE)

scale

Logical, scale rows (default FALSE)

center_rows

Logical, center rows vs columns (default TRUE for standard PCA)

memory_limit

Bytes for Fast Path. Set 0 to force BPCells path. Default 500 MB.

return_format

"svd" (d, u, v) or "pca" (eigenvalues, loadings, coords)

Value

List with SVD or PCA components