# Overview

A *Category scatter* *chart* is a scatter chart that displays a pair of category series having the same category variables. It displays the series as coordinates, where one series is placed on the x-axis and the other on the y-axis. A point represents the value of both series for one category. It is typically used when displaying the results of a *S**calar* analysis.

Chart elements:

- Graph
- Main title
- Graph area
- Value axis (y-axis)
- Source text
- Chart background
- Time axis (x-axis)
- Legend

# Settings

To edit any one of these components, click on it, and the available options will appear at the top of the window, under the presentation properties tab.

## Graph settings

When you click on any point of the graph, the settings that become available under the presentation properties tab are especially relevant to fine tuning the look of your graph. In the appearance box, you can customize the style and color of the graph display, for example selecting whether you want a line or markers in the case of a line graph, and the size of the bubbles in the case of a bubble graph.

Here, you can also limit the range of categories displayed for the graph you have selected t by specifying category numbers under *data range*. You should use the “#” symbol to specify category index values, or use relative index values such as -1. The display range #2 to #5, for example, will display the second to the fifth categories, based on their order in the series.

## Graph layout

You can access this window by right clicking on the chart and selecting graph layout.

Here, you can define how the graph should be displayed (line or bubble graph) as well as which series corresponds to which axis. On the right side of the window, the graphed pairs of series are displayed under a graph type. The first series of each pair is placed on the x-axis and the second one on the y-axis. Click and drag to move them if you want to switch the axes.

#### Line chart

When graphing the same pair of series twice in a chart (if, for instance, you would like to display two ranges of time in different colors) it is important that the series are in the same order, as in the picture above.

#### Bubble chart

The bubble chart requires a third series to be added last in the list. This third series will define the relative sizes of the bubbles.

*Bubble charts are available from version 1.18*