Crabs {HDclassif}

Morphological Measurements on Leptograpsus Crabs.

Description

The Crabs data frame has 200 rows and 6 columns, describing 5 morphological measurements on 50 crabs each of two colour forms and both sexes, of the species Leptograspus Variegatus collected at Fremantle, W. Australia.

Usage

data(Crabs)

Format

A data frame with 200 observations on the following 6 variables.

class

Type of the crabs: the first character represents the species - "B" or "O" for blue or orange-, the second represents the sex -"M" or "F" for male or female-.

FL

Frontal lob size (mm).

RW

Rear width (mm).

CL

Carapace length (mm).

CW

Carapace width (mm).

BD

Body depth (mm).

Details

This dataset can also be found in the MASS package, the unique difference is the class vector which is easier to use here.

Source

Campbell, N. A. and Mahon, R. J. (1974) “A multivariate study of variation on two species of rock crab of genus Leptograspus”, Australian Journal of Zoology, 22, 417–425.

References

Venables, W. N. and Ripley, B. D. (2002) “Modern Applied Statistics with S”. Fourth edition. Springer.