ivlev_electivity: Ivlev's electivity, E

In electivity: Algorithms for Electivity Indices

Description

Bounded between -1.0 (avoidance), 0 (random feeding), and +1.0 (preference).

Usage

ivlev_electivity(r, p)

Arguments

r	(Numeric) Resource utilisation.
p	(Numeric) Resource availability.

Value

A numeric vector.

Source

Lechowicz, M.J., 1982. The sampling characteristics of electivity indices. Oecologia 52, 22–30. https://doi.org/10.1007/BF00349007

Examples

data(moth_distrib)
ivlev_electivity(moth_distrib$r, moth_distrib$p)

electivity documentation built on Aug. 20, 2019, 5:11 p.m.