manlysalpha {selectapref}

Manly's alpha feeding preference (Chesson 1978). Returns Manly'as alpha index from vectors of initial and final food item counts.

Description

Manly's alpha feeding preference (Chesson 1978). Returns Manly's alpha index from vectors of initial and final food item counts.

Usage

manlysalpha(initial, consumed, stand = FALSE, perc = FALSE,
  deplete = TRUE)

Arguments

initial

A vector of initial food items counts available to the organism in the environment

consumed

A vector of food items consumed by the organism

stand

Converts values with highest standardized to "1"? Defaults to FALSE.

perc

Converts values to percentages? Defaults to FALSE.

deplete

For use in experiments where food sources deplete? Defaults to TRUE.

Examples

initial_prey_count <- c(10,10,10,10,10,10)
number_prey_consumed <- c(9,8,1,3,5,9)
manlysalpha(initial = initial_prey_count, consumed = number_prey_consumed,
stand = TRUE, perc = FALSE, deplete = TRUE)

manlysalpha(initial = initial_prey_count, consumed = number_prey_consumed,
stand = TRUE, perc = TRUE, deplete = TRUE)