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Chart Terminology

The following table defines the chart terminology used in .

Chart Terminology 

Term
Definition
Axes
Straight lines on a chart that provide a framework for measurement and reference. Typically, the X-axis and Z-axis are used to display label items, and the Y-axis 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 wedge-shaped 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 color-keyed 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.



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