Example of Two Indices for Variables to Cases
When a variable group records more than one factor, you can create more than one index; however, the current data must be arranged so that the levels of the first factor are a primary index within which the levels of subsequent factors cycle. In the current data, there is one variable group, width, and two factors, A and B. The data are arranged so that levels of factor B cycle within levels of factor A.
We'll restructure the variable group into a single variable, width, and create two indices. The new data are shown in the following table.