Plotting Pie Charts
A Pie Chart is a circular chart divided into sectors, illustrating numerical proportion.
It contains the following attributes:
It cannot be a nominal value
Number of bins
Defines the number of displayed intervals for the attributes.
Any numerical value is possible.
The operator used to aggregate weight attribute values.
Possible values are average, maximum, median, minimum, mode and sum.
The following examples are based on the Adult dataset.
Scenario data can be found in the Datasets folder in your Rulex installation.
Basic pie chart
Dragging and dropping the relationship attribute onto the x cell and selecting Pie Chart in the Plot cell will display the pie chart of the relationship attribute.
Pie chart with weight
Dragging and dropping the capital-gain attribute onto the Weight cell will display the just built pie chart weight-based on capital-gain attribute values.
In this case, the slices of the pie are not drawn based on raw frequencies, but based on the Weight attribute.