agricolae (version 1.2-8)

index.bio: Biodiversity Index

Description

Scientists use a formula called the biodiversity index to describe the amount of species diversity in a given area.

Usage

index.bio(data, method = c("Margalef", "Simpson.Dom", "Simpson.Div", 
"Berger.Parker", "McIntosh", "Shannon"), level=95, nboot=100, console=TRUE)

Arguments

data

number of specimens

method

Describe method bio-diversity

level

Significant level

nboot

size bootstrap

console

output console TRUE

Value

Index and confidence intervals.

Details

method bio-diversity. "Margalef" "Simpson.Dom" "Simpson.Div" "Berger.Parker" "McIntosh" "Shannon"

References

Magurran, A.E. (1988) Ecological diversity and its measurement. Princeton University Press Efron, B., Tibshirani, R. (1993) An Introduction to the Boostrap. Chapman and Hall/CRC

Examples

# NOT RUN {
library(agricolae)
data(paracsho)
# date 22-06-05 and treatment CON = application with insecticide
specimens <- paracsho[1:10,6]
output1 <- index.bio(specimens,method="Simpson.Div",level=95,nboot=100)
output2 <- index.bio(specimens,method="Shannon",level=95,nboot=100)
rbind(output1, output2)
# }