BioTIMEr (version 0.3.0)

getAlpha: Alpha

Description

Alpha

Usage

getAlpha(x)

Value

A data frame with results for S (species richness), N (numerical abundance), maximum N per year per assemblage, Shannon, Exponential Shannon, Simpson, Inverse Simpson, PIE (probability of intraspecific encounter) and McNaughton's Dominance.

Arguments

x

(data.frame) First column has to be year and following columns contain species abundances.

Examples

if (FALSE) {
# 1 site, 1 year in long format, ordered by ABUNDANCE or BIOMASS
x <- data.frame(species = letters[1:6], x = 6:1)
getAlpha(x$x)
}