Chemical Composition of Pottery

The data give the chemical composition of ancient pottery found at four sites in Great Britain. They appear in Hand, et al. (1994), and are used to illustrate MANOVA in the SAS Manual. (Suggested by Michael Friendly.)

Pottery

Format

A data frame with 26 observations on the following 6 variables.

Site

a factor with levels AshleyRails Caldicot IsleThorns Llanedyrn

Al

Aluminum

Fe

Iron

Mg

Magnesium

Ca

Calcium

Na

Sodium

Source

Hand, D. J., Daly, F., Lunn, A. D., McConway, K. J., and E., O. (1994) A Handbook of Small Data Sets. Chapman and Hall.

Examples

Pottery
#>           Site   Al   Fe   Mg   Ca   Na
#> 1    Llanedyrn 14.4 7.00 4.30 0.15 0.51
#> 2    Llanedyrn 13.8 7.08 3.43 0.12 0.17
#> 3    Llanedyrn 14.6 7.09 3.88 0.13 0.20
#> 4    Llanedyrn 11.5 6.37 5.64 0.16 0.14
#> 5    Llanedyrn 13.8 7.06 5.34 0.20 0.20
#> 6    Llanedyrn 10.9 6.26 3.47 0.17 0.22
#> 7    Llanedyrn 10.1 4.26 4.26 0.20 0.18
#> 8    Llanedyrn 11.6 5.78 5.91 0.18 0.16
#> 9    Llanedyrn 11.1 5.49 4.52 0.29 0.30
#> 10   Llanedyrn 13.4 6.92 7.23 0.28 0.20
#> 11   Llanedyrn 12.4 6.13 5.69 0.22 0.54
#> 12   Llanedyrn 13.1 6.64 5.51 0.31 0.24
#> 13   Llanedyrn 12.7 6.69 4.45 0.20 0.22
#> 14   Llanedyrn 12.5 6.44 3.94 0.22 0.23
#> 15    Caldicot 11.8 5.44 3.94 0.30 0.04
#> 16    Caldicot 11.6 5.39 3.77 0.29 0.06
#> 17  IsleThorns 18.3 1.28 0.67 0.03 0.03
#> 18  IsleThorns 15.8 2.39 0.63 0.01 0.04
#> 19  IsleThorns 18.0 1.50 0.67 0.01 0.06
#> 20  IsleThorns 18.0 1.88 0.68 0.01 0.04
#> 21  IsleThorns 20.8 1.51 0.72 0.07 0.10
#> 22 AshleyRails 17.7 1.12 0.56 0.06 0.06
#> 23 AshleyRails 18.3 1.14 0.67 0.06 0.05
#> 24 AshleyRails 16.7 0.92 0.53 0.01 0.05
#> 25 AshleyRails 14.8 2.74 0.67 0.03 0.05
#> 26 AshleyRails 19.1 1.64 0.60 0.10 0.03