archdata (version 1.0)

RBPottery: Romano-British Pottery

Description

Results of chemical analyses of 48 specimens of Romano-British pottery from 5 sites in 3 regions.

Usage

data("RBPottery")

source

Baxter, M. J. 2003. Statistics in Archaeology. Arnold. Tubb, A., A. J. Parker, and G. Nickless. 1980. The Analysis of Romano-British Pottery by Atomic Absorption Spectrophotometry. Archaeometry 22: 153-71.

Details

Results of chemical analyses of 48 specimens of Romano-British pottery published by Tubb, et al. (1980). The numbers are the percentage metal oxide. "Kiln" indicates at which kiln site the pottery was found. The kiln sites come from three regions (1=Gloucester, (2=Llanedeyrn, 3=Caldicot), (4=Islands Thorns, 5=Ashley Rails)). The data were scanned from Table 2.2 in Baxter (2003, p. 21) and preserve three probable typographical errors in the original publication. Those errors are the values for TiO2 in line 4 (sample GA4), for MnO in line 35 (sample C13), and for K2O in line 36 (sample C14). Versions of these data are also available as Pottery in package car, pottery in package HSAUR, and Pottery2 in package heplots.

Examples

data(RBPottery)
print(aggregate(RBPottery[, -c(1:3)], list(Region=RBPottery$Region), mean), digits=2)
plot(Na2O~CaO, RBPottery, pch=as.numeric(Region)-1)
legend("topright", levels(RBPottery$Region), title="Region", pch=0:2)