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  • Glossary

Graphs

There are six graphs available. If a graph is displayed, it will be updated in real time as data and parameters are modified and as new solutions are found while the OptiPath algorithms are computing.

Graphs Menu

There are six items on the Graphs menu, one for each graph available. Each has a submenu of options specifically for that graph. Right clicking on each graph will pop up a copy of the submenu. On each graph you can set the labels for the X and Y axes and save the graph as a separate graphics file.

Data displays the Data Graph. The data graph is the traditional graphical representation used in seriation, particularly frequency seriation. The data graph provides a way of visually evaluating how good a seriation is when the expectation is that feature values should display either a unimodal or gradual pattern over time. The data graph plots selected features along the X-axis and selected items along the Y-axis. The input data for each item feature pair is represented as a horizontal box or bar. This allows a visual assessment of unimodality reflected in a lenticular or battleship shape. The Data graph differs from the Values graph in that the user's input data are plotted rather than the computed values used in the Values graph.

Values displays the Values Graph. The values graph is a traditional graphical representation used in seriation, particularly frequency seriation. The values graph provides a way of visually evaluating how good a seriation is when the expectation is that feature values should display either a unimodal or gradual pattern over time. The values graph plots selected features along the X-axis and selected items along the Y-axis. The computed values for each item feature pair is represented as a horizontal box or bar. This allows a visual assessment of unimodality reflected in a lenticular or battleship shape. The Values graph differs from the Data graph in that the computed values are plotted rather than the user's input data used in the Data graph.

Features displays the Features Graph. The features graph provides a way of visually evaluating how good a seriation is when the expectation is that feature values should display a unimodal pattern over time. The features graph plots selected features with their computed values along the vertical axis and their computed dates along the horizontal axis. This allows a visual assessment of the unimodality of each feature.

Distances displays the Distances Graph. The distances graph provides a visual representation of the distance of each item to every other item. The distances graph provides a way of visually evaluating how good a seriation is when the expectation is that items close together in the seriation ordering should be similar or close together in distance, and items far apart in the seriation ordering should be dissimilar or far apart in distance.

Order displays the Order Graph. The order graph plots selected items with their computed seriation order along the vertical axis and their user input order along the horizontal axis. Ideally, if the user input order is correct, the plot for a good seriation should fall along the diagonal.

Dates displays the Dates Graph. The dates graph plots the seriated dates for selected items with their computed date along the vertical axis and their user input date along the horizontal axis. Ideally, if the user input dates are correct, the plot should fall along the diagonal.

Path displays the Path Graph. The path graph plots selected items with their computed distance along the vertical axis and their computed date along the horizontal axis. Ideally, if the user input dates are correct, the plot should fall along the diagonal.

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