Crabs | R Documentation |
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.
data(Crabs)
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).
This dataset can also be found in the MASS package, the unique difference is the class vector which is easier to use here.
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.
Venables, W. N. and Ripley, B. D. (2002) “Modern Applied Statistics with S”. Fourth edition. Springer.
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