Description Usage Arguments Details Value Author(s) See Also Examples

Draws a random permutation on `1:length(exchange.list)`

such that no two elements whose corresponding `exchange.list`

values are different are interchanged.

1 | ```
rperm(exchange.list)
``` |

`exchange.list` |
A vector such that the permutation vector may exchange the ith and jth positions iff |

`rperm`

draws random permutation vectors given the constraints of exchangeability described above. Thus, `rperm(c(0,0,0,0))`

returns a random permutation of four elements in which all exchanges are allowed, while `rperm(c(1,1,"a","a")`

(or similar) returns a random permutation of four elements in which only the first/second and third/fourth elements may be exchanged. This turns out to be quite useful for searching permutation spaces with exchangeability constraints (e.g., for structural distance estimation).

A random permutation vector satisfying the given constraints

Carter T. Butts [email protected]

1 2 3 4 |

sna documentation built on May 30, 2017, 12:18 a.m.

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