On this Picostat.com statistics page, you will find information about the crabs data set which pertains to Morphological Measurements on Leptograpsus Crabs. The crabs data set is found in the MASS R package. Try to load the crabs data set in R by issuing the following command at the console data("crabs"). This may load the data into a variable called crabs. If R says the crabs data set is not found, you can try installing the package by issuing this command install.packages("MASS") and then attempt to reload the data with library("MASS") followed by data("crabs"). Perhaps strangley, if R gives you no output after entering a command, it means the command succeeded. If it succeeded you can see the data by typing crabs at the command-line which should display the entire dataset.
If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the crabs R data set. The size of this file is about 6,927 bytes.
Morphological Measurements on Leptograpsus Crabs
crabs data frame has 200 rows and 8 columns, describing 5
morphological measurements on 50 crabs each of two colour forms and
both sexes, of the species Leptograpsus variegatus collected at
Fremantle, W. Australia.
This data frame contains the following columns:
"O" for blue or orange.
as it says.
1:50 within each of the four groups.
frontal lobe size (mm).
rear width (mm).
carapace length (mm).
carapace width (mm).
body depth (mm).
Campbell, N.A. and Mahon, R.J. (1974) A multivariate
study of variation in two species of rock crab of genus
Australian Journal of Zoology 22, 417–425.
Venables, W. N. and Ripley, B. D. (2002)
Modern Applied Statistics with S. Fourth edition. Springer.
Dataset imported from https://www.r-project.org.