Description Usage Arguments Details Value Note References See Also Examples

General a small sample of size M out of a huge population of size N.

1 2 3 |

`N` |
The size of the population. |

`M` |
The sample size. |

`seed` |
A |

`HSEL.bigz`

generates a sample of size M from a population of size N, with space complexity linear in M.
`rejsample`

is similar to `HSEL.bigz`

, but implemented using direct rejection through `unique`

.
`sample1`

generates one number of 0 to N-1 using simple rejection and `urand.bigz`

.

For `HSEL.bigz`

and `rejsample`

, a `bigz`

vector of length `N`

, between 1 and N.
For `sample1`

, a `bigz`

integer, between 0 and N-1.

`rejsample`

can be very slow when M is large.

Jarmo Ernvall and Olli Nevalainen. 1982. An Algorithm for Unbiased Random Sampling. THE COMPUTER JOURNAL, VOL. 25, NO. 1, 45–47

1 2 3 |

Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.