The data arise from a chemical analysis of 26 samples of pottery found
at Romano-British kiln sites in Wales, Gwent and the New Forest. The
variables describe the composition, in terms of the metals aluminium,
iron, magnesium, calcium and sodium, and are expressed as percentages
of the oxides of the metals.
Value
The data frame contains the following components:
Site
The site, coded as follows: L:Llanederyn; C:Caldicot; I:Island Thorns;
A:Ashley Rails
Al
Aluminiun content
Fe
Iron content
Mg
Magnesium content
Ca
Calcium content
Na
Sodium content
CATEGORY
Multivariate analysis
Source
Tubb, A. et al. "Archaeometry", Vol 22, pp 153𤪛, (1980)