R: Convert sparse matrix to dense form

sp2mat {asreml} | R Documentation

## Convert sparse matrix to dense form

### Description

Function that converts a sparse matrix in three-column coordinate form to a dense matrix form.

### Usage

    sp2mat(x)

### Arguments

`x` | A three-column matrix containing the row and column indices and the matrix element, respectively.

### Details

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

[Package asreml version 4.2.0.480 Index]