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CrabsB (M vs F) data
The data set (and description) can be downloaded here:
http://stat.ethz.ch/Teaching/Datasets/crabs.dat
Description:
TITLE : crabs
KEYWORDS (statist) : discriminant analysis
APPLICATION AREA : biology, zoology, environment
SHORT DESCRIPTION :
Leptograpsus crabs
Data from Campbell & Mahon (1974) on the morphology of
rock crabs of genus Leptograpsus. There are 50 specimens
of each sex of each of two colour forms.
Variables are:
- colour form (B = blue form, O = orange form);
- sex (M = male, F = female);
- index within each group of 50;
- frontal lip of carapace, in mm;
- rear width of carapace, in mm;
- length along the midline of carapace, in mm;
- maximum width of carapace, in mm;
- body depth, in mm.
DIM.(VAR./OBS.) : 5 / 200
/ LITERATURE : /
Ripley (1996): Pattern Recognition and Neural Networks.
Descriptive statistics:
Dataset= crabB_MvsF : n= 100 , d= 5
Class1: n= 50
Covariance matrix:
[,1] [,2] [,3] [,4] [,5]
[1,] 10.2560 6.5431 23.2955 26.6118 10.1705
[2,] 6.5431 4.4591 15.0789 17.2604 6.5481
[3,] 23.2955 15.0789 53.4167 60.9823 23.2389
[4,] 26.6118 17.2604 60.9823 69.7809 26.5889
[5,] 10.1705 6.5481 23.2389 26.5889 10.2393
Correlation matrix:
[,1] [,2] [,3] [,4] [,5]
[1,] 1.0000 0.9676 0.9953 0.9948 0.9925
[2,] 0.9676 1.0000 0.9770 0.9785 0.9691
[3,] 0.9953 0.9770 1.0000 0.9988 0.9937
[4,] 0.9948 0.9785 0.9988 1.0000 0.9947
[5,] 0.9925 0.9691 0.9937 0.9947 1.0000
Median: 15.0469 11.8321 32.49 37.1878 13.571
Mean: 14.842 11.718 32.014 36.81 13.35
MCD-estimated:
MDC-0.975-Mean: 14.4659 11.3439 31.0195 35.6024 12.8951
MDC-0.750-Mean: 14.6091 11.4932 31.4068 36.0841 13.0795
MDC-0.500-Mean: 14.4659 11.3439 31.0195 35.6024 12.8951
Class2: n= 50
Covariance matrix:
[,1] [,2] [,3] [,4] [,5]
[1,] 6.9054 6.2789 15.4733 17.7981 7.1029
[2,] 6.2789 5.9473 14.2532 16.3893 6.5553
[3,] 15.4733 14.2532 35.0422 40.2104 16.1379
[4,] 17.7981 16.3893 40.2104 46.2908 18.5290
[5,] 7.1029 6.5553 16.1379 18.5290 7.5761
Correlation matrix:
[,1] [,2] [,3] [,4] [,5]
[1,] 1.0000 0.9798 0.9947 0.9955 0.9820
[2,] 0.9798 1.0000 0.9873 0.9878 0.9766
[3,] 0.9947 0.9873 1.0000 0.9984 0.9904
[4,] 0.9955 0.9878 0.9984 1.0000 0.9894
[5,] 0.9820 0.9766 0.9904 0.9894 1.0000
Median: 13.1586 12.0492 27.8601 32.293 11.5932
Mean: 13.27 12.138 28.102 32.624 11.816
MCD-estimated:
MDC-0.975-Mean: 12.7163 11.586 26.7977 31.1256 11.2023
MDC-0.750-Mean: 12.7163 11.586 26.7977 31.1256 11.2023
MDC-0.500-Mean: 12.7163 11.586 26.7977 31.1256 11.2023
Measures:
Mah.Dist: 3.1111
Mah.Dist-MCD-0.975: 2.5838
Mah.Dist-MCD-0.750: 2.5838
Mah.Dist-MCD-0.500: 2.6081
Zuletzt geändert am 17.02.2013
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