tabula (version 3.0.1)

test_diversity: Diversity Test

Description

Compares Shannon diversity between samples.

Usage

test_diversity(object, ...)
# S4 method for matrix
test_diversity(object, adjust = "holm", ...)
# S4 method for data.frame
test_diversity(object, adjust = "holm", ...)

Value

A numeric

matrix.

Arguments

object

A \(m \times p\) numeric matrix or data.frame of count data (absolute frequencies giving the number of individuals for each category, i.e. a contingency table). A data.frame will be coerced to a numeric matrix via data.matrix().

...

Further arguments to be passed to internal methods.

adjust

A character string specifying the method for adjusting \(p\) values (see stats::p.adjust()).

Author

N. Frerebeau

Details

This test produces two sided pairwise comparisons: it returns a matrix of adjusted \(p\) values.

References

Magurran, A. E. (1988). Ecological Diversity and its Measurement. Princeton, NJ: Princeton University Press. tools:::Rd_expr_doi("10.1007/978-94-015-7358-0").

Examples

## Data from Conkey 1980, Kintigh 1989
data("cantabria")

## Shannon diversity test
test_diversity(cantabria)