# Create all combinations of the elements of a vector.

### Description

Creates a matrix with all combinations of 1 to all elements of the
vector provided. Elements to occur in all combinations can be specified.
This is internally called by `brute.search`

.

### Usage

1 |

### Arguments

`x` |
A vector of elements of which combinations are to be formed. |

`force` |
A vector of elements that are supposed to occur in each combination. |

`trace` |
A boolean indicating if some output should be printed (TRUE) or not (FALSE=default). |

### Value

A matrix with one combination per row. For the shorter combinations, the columns to the right are filled up with NA.

### Author(s)

Lutz P Breitling <lutz.breitling@gmail.com>

### See Also

`brute.search`

### Examples

1 |

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