# create a SparseplusLowRank object

### Description

create an object of class `SparseplusLowRank`

which can be
efficiently stored and for which efficient linear algebra operations are possible.

### Usage

1 |

### Arguments

`x` |
sparse matrix with dimension say m x n |

`a` |
matrix with m rows and number of columns r less than |

`b` |
matrix with n rows and number of columns r less than |

### Value

an object of S4 class `SparseplusLowRank`

is returned with slots
`x`

, `a`

and `b`

### Author(s)

Trevor Hastie

### See Also

`SparseplusLowRank-class`

, `softImpute`

### Examples

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