Categorized Pie Charts - Advanced Tab

Graphical Analytic Techniques

Select the Advanced tab of the Categorized Pie Charts Startup Panel to access the following options. For more options, see also the Pies customization dialog box topic.

Variables

Click this button to display a variable selection dialog box, in which you can select the X and Y grouping variables, the dependent variable(s) to be displayed in the pie charts, and the grouping variable that will be used to categorize values of the dependent variable(s) in each small graph. If more than one dependent variable is selected, a sequence of graphs (one for each dependent variable) is produced using the same set of grouping variables. A list of the selected variables is displayed below the Variables button.

Note: the selected grouping variables do not have to be categorical variables (e.g., contain codes); you can use one of the methods of categorization to categorize continuous variables. The selection of grouping variables is not necessary if the categories are defined via the Multiple subsets method.

Graph type. Select either Pie Chart - Counts or Pie Chart - Values.

X Categories, Y Categories

Select the method of categorization for each of the selected category variables. (Note that grouping variables do not need to be selected if Multiple subset categories are selected.) Each of the methods is discussed in Method of Categorization.

Intervals

These options are used to choose the method of categorization of values for the pie chart [as mentioned before, the categorized pie charts display the frequencies (i.e., counts, see Pie Chart - Counts)]. Each of the methods is discussed in Method of Categorization.

Style

You can change the appearance of the pie by choosing either the 2-dimensional (2D) or 3-dimensional (3D) display in this option.

Shape

The pie shape can be either circular or elliptical. However, specifying Ellipse may cause the slices to be disproportionate in size (i.e., the slices that follow radii close to the vertical axis of the screen or paper will look relatively larger than their real size as compared to the horizontal slices, which will be squeezed in perspective and will appear smaller).

Exploded Slice

Select this option to explode a specified number of slices of the pie.

Pie legend

Select a format for pie legends (Off, Percent, Values, Text Labels, Text and Percent, Text and Value) to be placed in the graph. Selecting Text labels will use the category descriptions in the pie legend.