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In addition to temporal organization, seriation results may reflect assemblage differences in social status, age, sex or those resulting from regional variation (or a combination of two or more of these factors). 343) presents a seriation result of Danish hoards based on artefact types like daggers, axes, and swords.The result is not a chronological sequence due to the selection of types, the ordering seems to start with extremely male hoards and ends with extremely female ones. 269) Nowadays, seriation results are no longer produced manually as in Petrie's times but by appropriate algorithms.Of course, for a small examples like this, no computer programs are needed to find the best ordering, but for larger data sets like the 900 graves studied by Petrie they are extremely helpful.
Similarly, a mapping of the component scores for the first two axes of the correspondence analysis result will display a parabola if the design styles considered are controlled by one factor only (like chronology).the method does not tell whether the first object in the sequence is the oldest or the youngest object.Kendall (1971) applied multidimensional scaling to the cemetery data of Münsingen.He reasoned that the most accurate sequence would be the one where concentrations of certain design styles had the shortest duration across the sequence of papers (Renfrew and Bahn 1996, p. In addition, it is vital that the lifespans of the different design styles overlap. to form groups of objects belonging to the same design style is by no means trivial.
Following these rules, an assemblage of objects can be placed into sequence so that sites with the most similar proportions of certain styles are always together (Lock 2003, p. Creating a typology frequently is the basis of a seriation.The raw data are stored in an unsorted binary contingency table indicating which design style can be found in which context by a star symbol.