# solve.lpExtPtr {lpSolveAPI}

Solve a Linear Program

### Description

Attempt to compute the optimal solution of an lpSolve linear program model object.

### Usage

## S3 method for class 'lpExtPtr': solve((a, b, ...))

### Arguments

- a
- an lpSolve linear program model object.
- b
- this argument is ignored.
- ...
- additional arguments are ignored.

### Values

a single integer value containing the status code.

### Status Codes

0: | "optimal solution found" |

1: | "the model is sub-optimal" |

2: | "the model is infeasible" |

3: | "the model is unbounded" |

4: | "the model is degenerate" |

5: | "numerical failure encountered" |

6: | "process aborted" |

7: | "timeout" |

9: | "the model was solved by presolve" |

10: | "the branch and bound routine failed" |

11: | "the branch and bound was stopped because of a break-at-first or break-at-value" |

12: | "a feasible branch and bound solution was found" |

13: | "no feasible branch and bound solution was found" |

### References

### Examples

Documentation reproduced from package lpSolveAPI, version 5.5.2.0-9. License: LGPL-2