untb (version 1.2-15)

saunders: Dataset due to Saunders

Description

A dataframe of 40 holdfasts and a species inventory for each (saunders); also two data.frame.count objects: one for the 20 exposed holdfasts (saunders.exposed) and one for the 20 sheltered holdfasts (saunders.sheltered); and three count objects: saunders.tot, saunders.exposed, and saunders.sheltered.

Usage

data(saunders)

format

Dataset saunders is a data frame with 40 observations on 177 variables. The observations are 40 holdfasts and the variables are, with the exception of the first one, the numbers of each of 176 species living there. The first variable is a Boolean, indicating whether or not that holdfast was exposed (TRUE) or sheltered (FALSE).

Summary datasets saunders, saunders.exposed, and saunders.sheltered are objects of class count that are the species abundance for sheltered holdfasts, exposed holdfasts, and the entire dataset.

source

Data supplied by Justine Saunders

See Also

extractor

Examples

data(saunders)
plot(saunders.sheltered.tot, uncertainty=TRUE, n=1)

preston(saunders.tot)

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