HSCrab {evidence}

Morphology of horseshoe crabs.

Description

Data on horseshoe crab morphology collected by Brockman(1996) and used by Agresti(2012).

Usage

data(HSCrab)

Format

A data frame with 173 observations on the following 5 variables:

Col

an indicator variable for the carapace color

spineW

coded width of the spine

Width

maximal width of the carapace (cm)

Satell

number of satellite males

Weight

weight in g

Source

Brockman, H.J.(1996) Satellite male groups in horseshoe crabs, Limulus polyphemus Ethology 102(1), 1–21.

References

Agresti, A.(2012) Categorical Data Analysis (3rd ed.) Wiley, New York.

van Hulst, R. 2018. Evaluating Scientific Evidence. ms.

Examples

data(HSCrab)
plot(Weight ~ Width, col = Col, data = HSCrab)