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Notes on the Possible Misuse and Errors of Cumulative Percentage Frequency Graphs for the Comparison of Prehistoric Artefact Assemblages

Published online by Cambridge University Press:  27 May 2014

J. E. Kerrich
Affiliation:
Department of Statistics, University of Witwatersrand
D. L. Clarke
Affiliation:
Peterhouse, University of Cambridge

Extract

For many years archaeologists interested in the study of the Palaeolithic in North Africa and Eurasia have been using cumulative percentage frequency graphs for the comparison of prehistoric artefact assemblages. For examples we refer to the references at the foot of this text. However, it is perhaps time to carefully review this technique and its future utility.

Statistical techniques and mathematical models are slowly infiltrating and reshaping the discipline of archaeology—increasing the power and depth of both analysis and synthesis. It is perhaps already possible to distinguish the cumulative advance of these techniques in archaeology from the initial role of demonstrative aids and methods of data display towards an increasingly powerful analytical role with a capacity for predictive inference. In the ranks of the first generation we have the early use of graphs, frequency polygons and histograms for mapping severely limited numbers of percentages or attribute ratios. In the second generation of statistical techniques the impact of the computer is felt for the first time and archaeology is developing an array of exploratory attempts to integrate the probing capacity of such methods as factor analysis, matrix analysis and principal component analysis.

Type
Research Article
Copyright
Copyright © The Prehistoric Society 1968

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