Attributes

Attributes in a choice design can only be categorical.

Tip: When you have completed the Attributes outline, consider selecting Save Factors from the red triangle menu. This saves the attribute names, roles, and levels in a data table that you can later reload and reuse.

Figure 18.16 Attributes Outline 

The Attributes outline contains the following buttons:

Add Factor

Adds an attribute with the selected number of levels.

Remove

Removes the selected attributes.

Add N Factors

Adds multiple attributes. Enter the number of attributes to add, click Add Factor, and then select the number of levels. Repeat Add N Factors to add multiple attributes with different numbers of levels.

The Attributes outline contains the following columns:

Name

The name of the attribute. Attributes are given default names of X1, X2, and so on. To change a name, double-click it and type the desired name.

Role

Specifies the Design Role of the attribute as Categorical.

Attribute Levels

The attribute name or description. To insert Attribute Levels, click the default levels and type the desired names.

Editing the Attributes Outline

• To edit the Name of an attribute, double-click the attribute name.

• To edit an Attribute Level, click the level.

Attribute Column Properties

For each attribute, JMP saves the Value Order column property to the data tables constructed by the Choice platform. The Value Order column property specifies that levels appear in reports using the ordering specified in the Attributes outline. See Value Order in the Column Properties section.