Description Usage Arguments Details Value

This is an internal helper function for beta_stand(). Beta-diversity is calculated for the number of samples in x and the the given index. Therefore, x must have exactly N_samples rows. This is a security feature to ensure that users don't try to calculate another set size than given by the number of rows in x. Use beta_stand()!

1 | ```
setwise_beta(x, setsize = 2, func, ...)
``` |

`x` |
A site by species matrix. |

`setsize` |
number of sites in the matrix |

`func` |
function returning the desired beta-diversity metric |

`...` |
additional argumets passed on to func |

If extrapolate = F, observed S will be returned if N_stand exceeds sample size.

A single numeric value for the beta diversity index.

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