fowlbones: Fowl Bones

In SIN: A SINful Approach to Selection of Gaussian Graphical Markov Models

Description

Bone measurements are taken on 276 white leghorn fowl. The 6 variables are:

• skull length,

• skull breadth,

• humerous (wings),

• ulna (wings),

• femur (legs),

• tibia (legs).

Usage

data(fowlbones)

Format

A list providing a summary of the data. The list contains:

fowlbones$means	:	the mean vector,
fowlbones$stddev	:	the vector of standard deviations,
fowlbones$corr	:	the correlation matrix, and
fowlbones$n	:	the sample size.

Source

Whittaker, J. (1990) Graphical models in applied multivariate statistics. Chichester: Wiley. (See p.266).

Examples

data(fowlbones)
fowlbones$means
fowlbones$stddev
fowlbones$corr
fowlbones$n

Example output

 skull length skull breadth       humerus          ulna         femur 
            0             0             0             0             0 
        tibia 
            0 
 skull length skull breadth       humerus          ulna         femur 
            1             1             1             1             1 
        tibia 
            1 
              skull length skull breadth humerus  ulna femur tibia
skull length         1.000         0.584   0.615 0.601 0.570 0.600
skull breadth        0.584         1.000   0.576 0.530 0.526 0.555
humerus              0.615         0.576   1.000 0.940 0.875 0.878
ulna                 0.601         0.530   0.940 1.000 0.877 0.886
femur                0.570         0.526   0.875 0.877 1.000 0.924
tibia                0.600         0.555   0.878 0.886 0.924 1.000
[1] 276

SIN documentation built on May 2, 2019, 8:23 a.m.