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What this step does is create a visual representation of the qualities of the artifacts, and their co-occurrence at different junkyards.

Each of the bars in this graph represents a different junkyard; the different colored blocks represent percentages of artifact types within those junkyards.The figure on this page is a Microsoft Excel (TM) table showing the results of our frequency count.Our next step is to create a bar graph of the percentages of the objects in our junkyard samples.The seriation method works because object styles change over time; they always have and always will.A good example of a change in artifact type is the development of hand-held PDAs from those first enormous cell phones. As an example of how change through time works, consider the different music recording methods that were used in the 20th century.