svd_auto_threshold: Element-count boundary of the automatic SVD/PCA path...

View source: R/HDF5Matrix_op_decompositions.R

svd_auto_thresholdR Documentation

Element-count boundary of the automatic SVD/PCA path selection

Description

Number of matrix elements (nrow * ncol) at or above which method = "auto" stops computing an exact decomposition and switches to the hierarchical block approximation.

Usage

svd_auto_threshold()

Details

The value is read from the C++ constant SVD_EXACT_MAX_ELEMENTS so that documentation and implementation cannot drift apart. It currently corresponds to 53,687,091 elements, about 410 MB of double-precision data.

Value

Numeric scalar: the element-count boundary.

See Also

svd.HDF5Matrix, prcomp.HDF5Matrix

Examples

svd_auto_threshold()


BigDataStatMeth documentation built on Sept. 15, 2026, 1:08 a.m.