Term

Definition

Axes

Straight lines on a chart that provide a framework for measurement and reference. Typically, the Xaxis and Zaxis are used to display label items, and the Yaxis shows values or facts (measurable items), such as units and amounts.

Values

Graphic indicators that represent data. bar charts display values in either vertical or horizontal bars. Pie charts use wedgeshaped slices to represent values.

Plot Area

The area bounded by the axes is called the plot area. In the case of the pie chart, the plot area is defined by a circle representing the totality of all data items.

Planes

In all charts (except pie charts), planes provide background and graphed reference for charted values. Planes define horizontal, vertical, and background fields for a chart.

Legend

An information box containing colorkeyed labels used to identify different data values represented on a chart.

Grid Lines

Straight horizontal and vertical lines arranged in scaled increments that provide calibrated guidelines for value interpretation.

Bar

A linear measure of a value used in bar charts.

Slice

A spacial measure of a value used in pie charts.
