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Web node (SPSS Modeler)

Web node

Web nodes show the strength of relationships between values of two or more symbolic fields. The graph displays connections using varying types of lines to indicate connection strength. You can use a Web node, for example, to explore the relationship between the purchase of various items at an e-commerce site or a traditional retail outlet.

Figure 1. Web graph showing relationships between the purchase of grocery items
Web graph showing relationships between the purchase of grocery items

Directed Webs

Directed Web nodes are similar to Web nodes in that they show the strength of relationships between symbolic fields. However, directed web graphs show connections only from one or more From fields to a single To field. The connections are unidirectional in the sense that they are one-way connections.

Figure 2. Directed web graph showing the relationship between the purchase of grocery items and gender
Directed web graph showing the relationship between the purchase of grocery items and gender

Like Web nodes, the graph displays connections using varying types of lines to indicate connection strength. You can use a Directed Web node, for example, to explore the relationship between gender and a proclivity for certain purchase items.

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