User Guide

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Chapter 47
Example: Tables with L ayers
In addition to rows and columns, a table can also contain a third dimension: the
layer dimension.
Figure 47-8
Tablewithlayers
 In the
table, the variable labeled Minority Classification defines the layers. In
the data file, this creates two additional variables: one that identifies the layer
element and one that identifies the categories of the layer element.
 As with the variables created from the row elements, the variables created from
the la
yer elements are string variables with generic variable names (the prefix
Var followed by a sequential number).