sp2Matrix {asreml}R Documentation

Convert sparse matrix.

Description

Convert a sparse matrix in three column coordinate form to a Matrix object.

Usage

sp2Matrix(x, dense = FALSE, triplet = FALSE)

Arguments

x

A three column matrix containing the row and column indices and the matrix element, respectively, of the sparse matrix.

dense

If TRUE (the default is FALSE), the result is stored as a dense symmetric dspMatrix object, otherwise a sparse symmetric matrix.

triplet

If TRUE (the default is FALSE), the result is a CsparseMatrix, otherwise a TsparseMatrix (triplet form).

Details

If the sparse matrix inherits class ginv, the returned object preserves the A^{-1} attributes.


[Package asreml version 4.1.0.106 Index]