Categorized Pie Charts - Advanced Tab

Graphical Analytic Techniques

Select the Advanced tab of the Categorized Pie Charts dialog to create categorized pie charts using a greater variety of options than those available on the Quick tab. For more options, see also the Pies customization dialog.

Variables. Click the Variables button to display the standard variable selection dialog, 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, then a sequence of graphs (one for each dependent variable) will be produced using the same set of grouping variables. The selection that you make will then be displayed in the area of the dialog below the Variables button.

Note that 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.

Regular, Multiple. These options are applicable only when multiple variables are selected for the graph. Choose Regular to create regular pie charts, one for each variable; select Multiple to create a single graph with multiple pies (one for each variable).

X Categories, Y Categories. These options are used to choose 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 (select Circle) or elliptical (select Ellipse). However, choosing the Ellipse option 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 one of six formats for pie legends (Off, Percent, Values, Text labels, Text & percent, Text & values) to be placed in the graph. Selecting Text labels will use the category descriptions in the pie legend.