all_pairs | R Documentation |

Create all possible pairs of two character vectors.

```
all_pairs(x, y = character(0), sort = FALSE, result = "matrix")
names2pairs(x, y = NULL, sort = TRUE, result = "list")
```

`x, y` |
Character vectors. |

`sort` |
Logical. |

`result` |
A list or a matrix. |

NOTICE: If y is not NULL then x and y must be disjoint (no checks are made); otherwise pairs of identical elements wil also be obtained.

Søren Højsgaard, sorenh@math.aau.dk

```
x <- letters[1:4]
y <- letters[5:7]
all_pairs(x)
all_pairs(x, result="matrix")
all_pairs(x, y)
all_pairs(x, y, result="matrix")
```

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