hurlberts_pie: Probability of Interspecific Encounter (PIE)

Description Usage Arguments Value

View source: R/diversity_metrics.R

Description

Probability of Interspecific Encounter (PIE)

Usage

1
hurlberts_pie(taxa.wide)

Arguments

taxa.wide

Taxonomic counts aggregated at the specific taxonomic classification (e.g., Order, Family, or Genus) in a wide data format. Use the wide function to prepare the data.

Value

Hurlbert's (1971) Probability of Interspecific Encounter (PIE): PIE = (N/(N-1)) * (1 - sum(p^2)) where: p = the propotion a specific taxon composes of a sample N = the total abundance of organisms

This measurement is equivalent to Simpson's Index but includes a correction factor base on the total abundance of organisms.


zsmith27/Benthos documentation built on June 23, 2017, 12:07 p.m.